Difference between resistor and resistance

Resistor and resistance are two of the most fundamental concept in electronics. These two ideas play a vital role in almost every electronic device we use today. We all know that resistor is the ability to resist the flow of electric current through it,  while in resistance is the property by virtue of which a material opposes to the flow of current through it is called as the resistance. Let us have a deep insight into the comparison between a resistor and a resistance. 


Definition of Resistor:

A resistor is an electric and electronics component with a predetermined electrical resistance like i.e, 1 ohm, 10 ohms, 100 ohms, 10000 ohms, etc.

Definition of Resistance:

Resistance is the property of a conductor, which can determine the quantity of current and that passes through it when a potential difference is applied across it. 

The main key difference between resistor and resistance are listed below:


  • In resistor any material which has some resistance is called a resistor, While the resistance is the property by virtue of which a material opposes the flow of current through it is called resistance. 
  • The resistor is a component with a mainly resistive behavior when used in an electrical circuit when capacitance and inductance can be considered negligible, Resistance is a measure of the quantity of this resistive behavior.
  • The resistor is the equipment/component used to add resistance in the given circuit, While the resistance is the property of the conductor which opposed the flow of current flowing through it at a given voltage. R = VI
  • The resistor is an electric company with a predetermined electrical resistance like 1 ohm, 10 ohms, 100 ohms, 10000 ohms, etc.  Resistance is the property of a conductor, which can determine the quantity of current that passes through it when a potential difference is applied across it. 

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