Difference between speed and velocity | Speed vs velocity

As we know, speed and velocity are the two most common key terms in the field of physical science and engineering. Most of the times these terms confuse the newbie or those who just started learning the physics sciences and engineering.


Definition of speed:


The distance covered by a body in a given interval of time is called speed.  It is a scalar quantity as we need only its magnitude, but not the direction to specify it. It can be understood as the rate at which a body travels a distance, in the unit time. It determines the quickness of the object. i.e how fast an object is going. The meter per second is the SI unit of speed. The most commonly used unit of speed in kilometers per hour.

Definition of velocity:

The displacement of something in a definite time is called velocity. It is a vector measurement, as contains both the components i.e magnitude and direction. Therefore while the velocity of the object one must keep in mind that the direction should be special mentions, with a view to explain velocity completely.

The main key difference between speed and velocity are listed below:

  • Speed is the rate at which an object covers a certain distance while the velocity can be defined as the rate at which an object changes position in a certain direction. 
  • Speed is a scalar quantity while the velocity is the vector quantity.
  • The average speed will continue to count even if the object if direction while the velocity of the object is direction, therefore the object must follow one direction.
  • Speed is non-directional, while the velocity has direction.
  • Speed can never be negative or zero, velocity magnitude can be zero, negative or positive.
  • Speed may or may not be equal to the velocity, While in velocity An object may possess different velocities but the same speed. 
  • Both speed and velocity SI unit of m/s.
  • Speed never decreases with time. For moving objects. It is never zero. But the velocity can decrease with time. For a moving object. It can be 0.
  • V = d/t where the v is the average speed, t is the time taken to travel the distance and d is the distance traveled while the velocity is V = Δx/Δt, where is the average velocity Δt is the time of arrival and Δx is the displacement.
  • Speed determines how fast something is moving? while the velocity determines what direction something is moving?
  • A sports bike traveling at 50 m/s would go from 0 m/s to 30 m/s. before reaching 50 m/s and could even reach around 70 m/s. However, the average speed will be the speed of the bike while in velocity example is that a train going towards the south with an average speed of 50 km/h will have a velocity of 50 km/h, north. An object going straight in a particular direction is considered to have a velocity. 
Similarities between speed and velocity:
  • Measures how fast an object is traveling.
  • SI unit meter/second

Effect of gravity of mass and weight

How gravity affect mass and weight?


  • Mass is a measure of the amount of matter that an object has or how much stuff it is made up of. While the weight is a measure of how much gravity pulls on a mass or object
  • The weight of the .object depends on gravity at that place while mass is always a constant at any place and any time.
  • On the moon, there is less gravity pulling on the object so their weight is less. 
  • For example, a rock that weighs one pound while the earth will weigh less than that if it is taken to the moon.
  • But does its mass change just because it is on the moon? No, it is still the same size and looks the same. It just has less gravity pulling on it, so it weighs is less.
  • That is why an object that seems heavy to use on earth ends up being light enough to float around if they are taken into space.
  • Something similar happens is very high places like tall mountain peaks.
  • There is less gravitational pull in high places, so you would weigh a tiny bit less on the top of Mt. Everest.
  • This is because the peak of the mountain is higher and further away from the center of the earth, so the pull of gravity is that spot is weaker than at the bottom of the mountain.
  • Even if they weigh less because of a change in gravity force on your body, your body' s mass of still the same.
  • As your body grows you will have more mass which also means you will weight more. That's because when you are on the earth, the amount of gravity that pulls on you stays the same.
  • So when your mass changes, so do your wright.

Difference between force and power | Force vs Power

Force and power both quantities that come in the study for mechanics. In everyday usage the two terms may have similar connotations, however, in physics, the two terms have two separate meanings. The main key difference between force and power is that the term force is used to describe something that can change the momentum of an object. while the power is referred to as the rate as which force is able to transfer the energy. Here this article gives information about the difference between force and power to better understand this topic.


Definition of force: 

  • Force is a push or pull
  • Require an agent 
  • Acts an object
  • Measuring unit is Newtons
  • Is a vector 
  • Is a contact force or long-range force

Definition of power:

  • Power is the rate at which how work is done.
  • Another way energy is transmitted.
  • Power of a moving object.
  • The measuring unit is Joule/second or Watt.
  • It is a scalar.
  • It connects to object and really looking at how fast work is happening

The main key difference between force and power are listed below:

  • A force or a pull resulting from an interaction between objects while the power is the rate at which work is done or energy is transmitted.
  • The measuring unit of force is newton while the unit of power is joule/second.
  • The symbolic representation of force is F while the symbolic representation of power is P.
  • Force is given by a cross product of mass and acceleration, power is given as the ratio of work done per unit time. Means Force = mass multiplied by acceleration, F = ma, Power  = work divided by time, P = w/t.
  • Force is applied over a distance creates work, Power is a rate at which work is performed.
  • The force word or the unit of name force is given by the name of Isaac Newton while the Power words name comes after scientist James Watt.
  • Force is a vector quantity thus both magnitude and direction are required to have the resultant force on an object while the power is a scalar quantity thus is specified by only its magnitude.
  • Force example gravity, friction, magnetism while the power is horsepower (1 horsepower = 750 Watts).
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Difference Between Mass and Weight

The main difference between mass and weight is mass is an amount of matter in material while the weight measures the force of gravity act upon the mass. The term mass and weight are used interchangeably in ordinary conversion, but the two words don't mean the same thing. First, let us understand definition of mass and weight.

Definition of Mass:

Mass is a the quantity of matter in a body regardless of its volume or of any forces acting on it. The mass is essential for how much stuff is in an object. The unit for mass is gram, kilogram or milligram. 


Definition of weight:

The weight is a measurement of the gravitational force acting on a an object. If you are considering an object interacting with the earth this force is called the weight. The unit for weight is the newton.

The main key difference between mass and weight are listed below:


  • The SI unit of mass is the gram or kilogram,  the SI unit of weight is Newton.
  • Mass is a scalar quantity as it has nothing to do with direction while the weight is a vector quantity as there is a force that acts down toward the earth.
  • Mass is denoted by M while the Weight is denoted by W.
  • Mass body shows that overall of matter from which it is composed while the weight of a body is force editing between a body with varying mass and gravity.
  • Mass is considered a fundamental quantity that is of independent nature while the weight is known as a derived quantity.
  • A body is independent of a cation where the body is present while the weight of a body shows the variation with the location.
  • A body is always composed of matter thus mass can never be zero but as the weight of a body is a product of mass and gravity thus it can be 0 in the absence of gravity.
  • Mass is always constant at any place and any time and anywhere while the weight of an object depends on the gravity at that place.
  • Mass of a moving body M = F/A, Weight of  a body W = mg
  • Mass is measured using a pan balance, a triple beam balance, lever balance or electronic balance while the weight is measured using the spring balance.
  • The mass of the body is independent of external factors while the weight of the body varies according to a changed in external conditions.
  • Mass of an object is measured using the ordinary balance as it is determined by making a comparison between quantity and the unknown one. While spring balance generally measures the weight of the object.
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Difference Between Magnetic Field and Magnetic Flux

The main comparison between the magnetic field and magnetic flux is that the magnetic field is the region around the magnet where the moving charge experiences a force whereas the magnetic flux shows the quantity or strength of magnetic lines produced by the use of a magnet. In this article give the other key difference between the magnetic field and magnetic flux is listed below.

Definition of the magnetic field:

The magnetic field is designed as the region around the magnet where its poles and electric charges experience the force of attraction or repulsion. The presence of the field is determined through the needle. In actual practice, the magnetic field has no real existence and they are purely imaginary.

Definition of Magnetic flux:

The magnetic flux is defined as the total number of magnetic lines of force produces by the magnet. It is measured in weber. The on weber is equal to the 10^8 line of force or the Maxwell. Maxwell is the CGS unit of magnetic flux. The magnetic flux is totally similar to the electric current.

The main key difference between a magnetic field and magnetic flux are listed below:


  • The SI unit of the magnetic field is Tesla while the SI unit of magnetic flux is Weber.
  • The magnetic field is expressed as the product of the magnetic strength and the direction of the moving charges. Whereas the magnetic field is the product of strength and the area around the poles.
  • Magnetic defines as the symbol of F while the magnetic flux defined as the Ⲫ. 
  • The magnetic field is equal to the F = qvB while the magnetic flux is equal to the Ⲫ = BA
  • The area around the magnetic field where the pole and the moving charge experience the force of attraction and repulsion is called the magnetic field while the magnetic flux shows the quantities of the magnetic line of force passes through it.
  • The magnetic field only depends on the magnet which generates it whereas the magnetic flux depends on the magnetic strength and area.

Difference Between Amps and Watts

As we know, amps and watts are the two most common key terms in the field of electrical and electronics and communication engineering. Most of the times these terms confuse the newbie or those who just started learning the electronics sciences.
Definition of Amp:

The ampere is a rate of flow electric charge flow through the conductor. The SI unit of electric current. It represented by the symbol of A. 

Definition of Watts:

A watt has expressed the rate of the power flow. When one amp flows through an electrical difference of one volt, its result in terms of watts. W is the symbol for watt or watts.

One of the major differences between the amp and watt is that the amp is the SI unit of the current wheres the power is the  SI unit of the power. Here this article gives the difference between volt and amp to better understand this topic.


The main key difference between amps and watts are listed below:
  • Amps are the unit of current flow, while in watts is the unit for power.
  • Amps when multiplies by voltage equate to watts.
  • Amps are applicable only to electricity while watts is can be used in other forms of energy.
  • Measuring amps is much easier than measuring watts.
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Wattmeter | Definition | Symbol | Formula | Types | Uses

Definition of  Wattmeter:


The wattmeter is an electric instrument that is used to measure the electric power of various electric circuits. It consists of the current coil and voltage coil. These instruments are widely used for transmission and distribution of electric power and these are also used for protection purposes.


Wattmeter Symbol:

Wattmeter Symbol


Wattmeter Formula:


The wattmeter measure power of the various electric circuit. It works on a using power formula.

P = IV COSΘ

The exact wattmeter reading formulas are given below:

  • Wattmeter reading in single-phase = Power load (VICOSφ) + Power in the current coil ((I2r)
  • Wattmeter reading in single-phase  = VICOSφ + I2r
  • Three-phase wattmeter reading = √3 (VIcosφ + I2r)

Type of  Wattmeter:


There are two types of Wattmeter given below:
  • Dynamometer Type Wattmeter
  • Induction type Wattmeter

1. Dynamo type Wattmeter working principle:

Dynamo type wattmeter is a moving coil instrument and their operating field is produced in by other fixed coil. These instruments consist of a fixed coil having two equal sections which are parallel to each other. These two fixed coils are forced to avoid hysteresis losses. When an alternating current passes through the fixed coil, it produces a magnetic field and moving coil starts moving and the pointer is attached to the moving coil with a spring and it starts moving when moving coils move.

Advantages of Dynamometer type wattmeter:
  • These instruments provide full accuracy on direct current.
  • These instruments are made to give very high accuracy when these are used 

2. Induction type Wattmeter working principle:
These instruments are used on both of AC as well as DC supplies. These wattmeters provide accurate readings only when the frequency and supply voltage are constant. These wattmeters consist of two laminated electromagnets and one of them is excited by the current with exciting winding. This winding is connected in series of the circuit. The other magnet is excited by the current which is promotional to the current. Its exciting coil is parallel connected in the circuit. The winding of the first magnet carries line current and the other coil carries voltage and is highly inductive. This coil is connected to the supply and the flux is 90 degrees behind the voltage. The torque is produced and is proportional to the power in the load circuit. The torque acts on the disc and the force is produced in the disc. The disc started moving and the pointer is attached on it with a spring and it shows reading on its scale.

Advantages of induction type wattmeter:
  • They are inexpensive as compared to moving iron type instrument. 
  • They rating their accuracy over a wide range of temperatures as well as loads.
  • Long scale, freedom from the effect of start field.
  • They have high torque is to weight ratio as compared to other instruments or devices.
Disadvantages of induction type Wattmeter:
  • Change in temperature cause variation in the resistance of the moving element, affect the eddy current therein and so the operating torque. The error due to this is in part offset by a balancing effect due to a change in temperature of the windings.
  • Change in frequency from that of the calibration value causes variations in both reactance of the voltage coil circuit. Which is highly inductive and also in the amount of compensation from the phase compensating circuit. Within the limit of frequency met within the practice on the main.

Uses of Wattmeter:


The wattmeter is used in various like:
  • Laboratories
  • Industries 
  • Measurements of power in distribution and transmission power.
Explore more information:
  1. Ammeter 
  2. Voltmeter
  3. Colorimeter
  4. Ohmmeter

Difference between Electric and Magnetic Field

The main key difference between the electric magnetic filed is that the electric field is the area around the charged particle, it was introduced by Faraday while the magnetic field is the area or region around the magnetic where the poles of magnetic shows force of attraction or propulsion. The main key difference between electric and magnetic field are listed below.

Definition of the electric field:

The force around the electric charge particle is called an electrical field or electric field intensity. In same way, it is an area around the electric field where the force line exists. It has magnitude and direction. Hence it is a vector quantity. The symbol of E is expressed in the electric field and it is measured in newton/ coulomb.

Definition of a magnetic field:

The region around the magnetic field where its poles exhibit a force of attraction or repulsion is called the magnetic field. The magnetic field also induces when the electric charges are moving in space or an electrical conductor.


The main key difference between electric and magnetic field are listed below:


  • The SI unit of an electric field is the newton per coulomb whereas the SI unit of the magnetic field is Tesla.
  • Direction and magnitude specify the magnetic field. Thus it is a vector quantity. The electric field is also called as the vector field.
  • The electric field intensity is expressed by the symbol of E whereas the magnetic field intensity is expressed by B.
  • The region around the electric charge where the electric force exists that is called an electric field. The area around the magnet where the pole of the magnet exhibits a force of attraction or repulsion is called a magnetic field.
  • The electric field lines do not form a loop whereas the magnetic field lines form the closed-loop.
  • The electric field line induces on a positive charge and extinguishes on a negative charge while the magnetic field line generated from a north pole and terminates to the south pole of the magnet.
  • In an electromagnetic field, the electric field is perpendicular to the magnetic field whereas the magnetic field is perpendicular to an electric field.
  • The electric field intensity is measured by a spectrometer whereas the magnetometer measures the magnetic field intensity.
  • The electric field produces by a unit pole charge either by a positive or through a negative charge while the magnetic field caused by a dipole of the magnet.
  • The electric field induced by a single charge while the magnetic field induced by a north and south pole of the magnet.
  • The electric field is directly proportional to the flux whereas the intensity of the magnetic field depends on the number of field lines produces by the magnet.
  • The formula of the electric field is E = F/q while the magnetic field is B = Fi/ A.
  • An electric field exists two-dimension while the magnetic field exists three-dimension.
  • The electric field line can do work the speed and the direction of the charge changes while the magnetic field cannot do work. The direction of the charge change but the speed of the particles remains constant.
  • In the electric field, the like charges repel each other and the unlike charges attract each other, whereas the magnetic field the like poles repel each other the unlike poles attracts with each other.

Difference Between Wattmeter and Energy Meter

The main comparison between wattmeter and energy meter is that the wattmeter measures the electrical power flows in the circuit in watt while the energy meter measures the total electrical energy consumed by the electrical load. Here this article give information about the key difference between wattmeter and energy meter are listed below.


Definition of wattmeter:

The wattmeter is an instrument for measuring the electric power flow in a given circuit in watt. The internal construction of a wattmeter is such that it consists of using two coils. One of the coils is in series and the other is connected in parallel. The coil that is connected in series with the circuit which is known as the current coil and the one that is connected in parallel with the circuit which is known as the voltage coil.

Definition of energymeter:

The meter is used for measuring the energy utilizes by the electrical load known as the energy meter. The energy is the total power consumed and utilized by the load at a particular interval time. It is also used in domestic and industrial AC circuit for measuring the power consumption. The meter leads expensive and accurate.


The main key difference between wattmeter and energy meter are listed below:

  • The energy meter measures the total energy consumed by the load while the wattmeter measures the power in a circuit.
  • The energy meter measures the energy in joules but wattmeter the measure the power in watts.
  • The energy meter driving, braking, and moving system along with the counting mechanism are the main parts, but the wattmeter pressure and current coil, control system, scale and pointer, damping system to the central part.
  • The energy meter work on the principle of conversion of electrical energy into mechanical energy.  Whereas the wattmeter works on the principle that the force acts on the current-carrying conductor when it is placed in an electromagnetic field.
  • The energy meter is used for measuring the total power consumed by the load in the industries and homes while the wattmeter is used for measuring the power of an electrical circuit. It is also used for determining the power rating of the homes and industrial appliances.

Difference between moving iron and moving coil instruments

One of the major difference between the moving iron and moving coil instrument is that in moving iron is a soft iron system is used for measuring mechanism. While in moving coil instrument the conductor coil is used for DC measurement. Now let us discuss the difference between moving the iron and moving coil instruments to better understand this topic.

Definition of moving iron instrument:

Moving iron is an instrument that uses the soft iron core for measuring the current or voltage is known as the moving iron instrument. It works on the principle that the iron attracts toward the magnet. The magnetic field induces because of the electromagnetic and the iron piece is placed between this field. The force of attraction acting on the soft iron core and the magnitude of the force depends on the strength of the magnetic field.


Definition of moving coil instrument:

The instrument in which the coil rotates between the magnetic field of the permanent magnetic for measuring the DC such type of instrument is known as the moving coil instrument. It works on the principle that the force acting on the coil places between the magnetic field of the permanent magnet. and because of this magnetic field, the coil rotates.

The main key difference between moving the iron and moving coil instruments are listed below:

  • The MI iron instrument has a non-uniform scale whereas the moving coil instrument has a uniform sale.
  • Moving ironwork on the principle of magnetism, Moving coil work on the principle of DC motor.
  • The moving iron instruments use the soft iron piece as a rotating element. While the moving coil instrument uses the coil as a rotating element.
  • In moving iron, the defection of torque proportional to the square of the current while moving coil defection torque is proportional to the current.
  • The moving iron instrument is less accurate as compared to the moving coil instrument.
  • In moving iron the damping is provided by air damping while in moving coil instrument damping is provided by eddy current.
  • The working iron instrument is used for measuring both the direct and alternating current whereas the moving coil is used for the DC measurement.
  • The moving iron instrument consumes more power than the moving coil instrument.
  • Moving iron is gravity controlled instrument while in moving coil is a spring control instrument.
  • The moving iron instrument is free from totally from the hysteresis loss but in the hysteresis loss occurs in the moving coil instrument.
  • The instrument which uses the soft iron piece as a moving element such type of instrument is known as the MI instrument.
  • In moving iron instruments the gravity or spring provides the controlling torque to the instrument while in moving coil instrument the spring provides the controlling torque to the moving coil instrument.
  • The moving iron instrument can be used as an ammeter, voltmeter and wattmeter whereas the moving coil instrument is used as a voltmeter, ammeter, ammeter, and galvanometer.
  • The moving iron instrument uses the air friction damping while the moving coil instrument use for the eddy current damping for the system. The damping is the phenomenon through which the amplitude of the oscillations decreases.
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Difference Between Electrical Energy and Electrical Power

As we know that the electrical energy and electrical power both are the two major terms associated with electrical and electronics systems. The main fundamental difference between electrical energy and electrical power is the electrical energy represents the amount of work done that causes an electric current to flow through a circuit. As the against or electrical power is defined as the rate at which work is done is an electrical circuit. and the rate is specified according to the unit time. Now let us discuss the basic key difference between electrical energy and electrical power to better understand this topic.

 Definition of electrical energy:

 Electrical energy is defined as the overall work done in an electrical circuit. The energy is specified as the amount of work done to move an object and the electrical circuit. Thus the work done on the electric charge in order to cause movement is known as the electrical energy.

 Definition of electrical power:

 Electrical power is defined as the rate at which it is done on an electrical system. As we have discussed recently that doing work generates energy. Thus the power can be given as the rate of consumption of electrical energy.

The main key difference between electrical energy and electrical power:

  • The SI unit of the electrical energy is joules and electrical power is measured in watts.
  • Energy is denoted by E while in P is used to denote electrical power.
  • Electrical energy defines the energy granted due to the movement of charge carriers in a conductor while electrical power specifies the rate of consumption of electrical energy by a device.
  • The produce of power and time give the value of energy however power is the produce of potential difference existing across 2 ends of a conductor and the current flowing through it.
  • The electrical energy is defined as the E = VI.t while in Electrical power is defined as the P = V*I.
  • Electrical energy is the energy generated as the result of the potential difference in a circuit which causes current to flow through it while the electrical power is the rate of the amount of electrical energy transferred.
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Difference Between kW and kWh

The main key difference between the kW and kWh is that the kW measure the power generated and the utilize by the devices whereas the kWh measure the energy consumed by the electrical equipment. Here this article gives information about the difference between kW and kWh to better understand this topic.


Definition of kWh:

  • The kW stands for kilowatt, which measures the power delivered by the electrical device with respect to time or we can say that it calculates the work performed by the electrical appliances regarding time. The home appliances like the fan, the lamp, electrical heater have rated power and this power is measured in kilowatts.

Definition of kWh:

  • The kWh stands for kilowatt-hour which measures the work performed by the appliances at the given period. The kWh measures the energy utilized by the machines. The small consumption of the energy is measured in kilowatt-hour and the large consumption of energy is measured in megawatt-hours.
The main difference between kilowatt and kilowatt-hour is that kW shows a unit of power and kWh is a unit of energy.

  • kW - Power required 
  • kWh - Energy needed to keep the power going

The main key difference between kW and kWh:

  • The kW stands for kilowatt and the kWh stands for kilowatt-hour. The kWh measures the energy which is the product of the total power consumed by the devices and the time in an hour.
  • The kW is the unit of measuring the power utility and consumption by the electrical measures like motor, generator, heater, etc but the kWh measure the energy consumed by the electrical appliances.
  • The kW measures the power consumed by the electrical appliance like a bulb, electric heater, fan, etc while the kWh is mainly used for calculating the energy utilized by the machines.
  • The formula of kilowatts (kW) is joule/second*1000 while in kWh(kill watt-hour) is kW*hour.
  • kW is the amount of power used simultaneously at an any given amount of time while kWh is a unit of 1 kW per hour of time.
How to convert kW to kWh:

kWh can be calculated from kilowatts and the number of hours the appliance has been in operation. With the energy being equal to the power times the period of time, to put it scientifically E(kWh) = P(kW)*t(hours).

 Explore more information:
  1. Difference between power and torque
  2. Difference between active and reactive power
  3. Difference between electrical energy and electrical power
  4. Difference between wattmeter and energymeter
  5. Difference between volts and amps
  6. Difference between volts and watts 

Difference Between Charge and Current

As we know, charge and current are the two most common key terms in the field of electrical and electronics and communication engineering. Most of the times these terms confuse the newbie or those who just started learning the electronics sciences. 

 The key difference between the charge and the current is that the charge is the physical property of matter while the current is the rate of flow of charges. Here this article gives the information about the difference between charge and current are listed below


Definition of charge:

The charge is a fundamental property of particles that allow them to interact with each other via electromagnetic forces. During these interactions, the charge is always conserved. Electric charges could be either positive or negative. As we know that a positive charge refers to the charge carried by a proton while negative charge refers to the charge carried by an electron. 

Definition of  current:

Current is measured in the unit of amperes(A). A current of 1 A refers to the flow of charge where 1 C of charges flow past a point every second. 

The main key difference between charge and current are listed below:

  • The charge experiences the force only in the electrical field, wheres the current experience the force both in the electric and magnetic fields.
  • The coulomb is the unit of electric charges while the current in the measured the amperes.
  • The charge is the property of matter because of which the matter experiences the force of attraction or repulsion in an electric field. While the current is the rate of flow of charged particles called electrons.
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Difference Between Power and Torque

As we know, Power and Torque are the two most common key terms in the field of electrical and electronics and communication engineering. Most of the times these terms confuse the newbie or those who just started learning the electronics sciences. 

Definition of Torque:

The torque is the measure of the circular force whose effect can rotate by the particular type of the object. In other words, it is the product of the force and the distance. The torque is also called the twisting power. The SI unit of the torque is newton-meter an equivalent to joule.

Definition of Power:

Power is the measure of the amount of the work done, or in other words, power is defined as the amount of energy utilize a part unit of time. It is measured in joules/seconds and the SI unit is a watt. The power is mainly into two types the electrical power and mechanical power.

One of the major differences between power and torque is that the power is the amount of work done by an object while the torque is the tendency of the force to rotate object in a particular direction. Here this article gives information about the difference between power and torque are listed below.

The main key difference between power and torque are listed below:

  • The unit of power is a joule per second while the unit of torque is equivalent to the joule.
  • The power is the amount of energy per unit of time whereas the torque is the measure of energy whose effect can rotate the object.
  • The SI unit of power is the watt, whereas the SI unit of the torque is newton-meter.
  • The power is represented by the letter P whereas the torque is represented by the greek alphabet T.
  • The torque is induced when the force is applied to an object or body. While the electrical power is caused by the generator or through the battery and also the mechanical power is developed by doing some work. 
  • The power is defined as a ratio of the energy consumed with respect to time whereas the torque is the product of the force and distance.
  • The power is mainly classified into two types, mechanical power, and electrical power. There is no specific type of torque.
  • The electrical power is measured through the energy meter or multimeter whereas the torque is measured through a torque sensor or torque meter.
  • The power is a scalar quantity whereas the torque is a vector quantity. Torque twisted the object in a direction opposite to which the force applied to it.
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Difference Between Volt and Amp

As we know, Volts and amp are the two most common key terms in the field of electrical and electronics and communication engineering. Most of the times these terms confuse the newbie or those who just started learning the electronics sciences.

 Definition of Volt:

 The volt is measured by the work done by the electric charge to move from one end to another. It is the unit of the potential difference, electric potential, and electromotive force. The volt is represented by the symbol of V. The subunit of volts is microvolt, megavolt, millivolt.

 Definition of Amp:

 The ampere is a rate of flow electric charge flow through the conductor. The SI unit of electric current. It represented by the symbol of A. 

 One of the major differences between the volt and amp is that the volt is the SI unit of the voltage, electromotive force, potential difference whereas the amp is the SI unit of the current. Here this article gives the difference between volt and amp to better understand this topic.

The main key difference between volt and amp are listed below:

  • The volt has measured the force which causes the electrons to flow through the conductor whereas the amp measures the rate of flow electrons.
  • Volt and amps are correlated by ohm's law.
  • The volt represented by the symbol, of V and the ampere is represented by the symbol of A.
  • Power sources are often labeled by how many volts it has but while you can only get the number of amps when you can apply the power source to the circuit.
  • Volt is equal to the ratio of joule/coulomb whereas the amp is represented by the Coulomb/second,
  • The volt is the unit of potential difference, Voltage and electromotive force whereas the amp is the unit of current(I).
  • Most of the batteries have a fixed voltage but their ampere varies with higher amperage batteries lasting longer.
  • The volt is measured by the voltmeter whereas the amp is measured by the ammeter.
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Difference Between Volts and Watts

As we know, Volts and watts are the two most common key terms in the field of electrical and electronics and communication engineering. Most of the times these terms confuse the newbie or those who just started learning the electronics sciences.


Definition of Volts:

A volt is describing that the potential difference between two points of a conducting wire carrying a constant current of 1 ampere when the power dissipated between these points is equal to 1 watt. The symbol of a volt is V.

Definition of Watts:

A watt has expressed the rate of power flow. When one amp flow through an electrical difference of one volt, its result is expressed in terms of watts. W is the symbol for watt or watts.

One of the major differences between the volts and watts is that the volt is the SI unit of electromotive force and potential difference while in the watts measure the SI unit of power. Here this article gives information about the difference between volts and watts to better understand this topic.

The main key difference between volts and watts are listed below:

  • The SI unit of electromotive force and potential difference, whereas the watt is the SI unit of power.
  • The symbolic representation of volts is V and the watt is represented by the symbol of W.
  • The formula of the volt is potential energy/ charge, Formula of watt is volt*current.
  • In volts, a small amount of power is measured whereas watt measures the real power utilizes by the electrical devices.
  • The reading takings in volt are easier as compared to watts because the main reason that watt requires both the quantities of voltage and current.
  • The value in volts is measured by the voltmeter whereas the watt is measured by the power meter.
  • The reading taking of volts is very easy when compared to watts while the reading taking of watts is difficult since it required quantities of both voltage and current.
  • Volt describes a small portion of voltage from the power source, watts gives a more realistic measurement for power.
  • The base unit of watt us KgM2S-3 and the base unit of a volt are KgM2A-1S-3. The base unit is the fundamental unit that is not combined with any other unit examples- meter, kilogram, ampere, etc.
  • The power supplies and batteries often show how many volts it provides but not how many watts.
  • Volt is derived a portion of the power source while the watts can give you a more realistic measurement.
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