15 April 2023

Difference between permanent magnet and temporary magnet

The primary difference between a permanent magnet and a temporary magnet is that a permanent magnet is one whose magnetic properties never change, whereas a temporary magnet's magnetic properties always change.

The difference between the permanent magnet and the temporary magnet is discussed below. So let us check out its Difference to know more about Permanent magnets and temporary magnets.

What is a Permanent magnet?

Long-lasting magnets are called permanent magnets because they maintain their magnetic properties. Hard ferromagnetic materials are used to create permanent magnets. By putting them in an external magnetic field. You can magnetise them. Ferromagnetic material exhibit hysteresis: the material resists demagnetization over a wider range of external magnetic field strengths when the external magnetic field is gradually reversed.

What is a Temporary magnet?

Materials that act as a magnet only in the presence of an external magnetic field are said to be temporary magnets. These substances also go by the name soft magnetic materials. The removal of the external magnetic field causes the material field will be multiplied by several orders of magnitude when a current-carrying coil is wound around soft magnetic material. The group of materials known as ferromagnetic materials includes soft magnetic materials. 

Permanent magnet Vs Temporary magnet 

Name

The permanent magnet is also called a bar magnet, and A temporary magnet also called an electromagnet.

Magnetic field

A permanent magnet does not require any magnetic field on the outer side to stay completely magnetized, whereas a temporary magnet requires an external magnetic field to stay completely magnetized.

Strength

A permanent magnet has an invariable strength,  The strength of a temporary magnet is always altered with the circumstances.

Magnetic poles

A temporary magnet has magnetic poles that can be reversed, whereas the magnetic poles of a permanent magnet cannot.

Attractive Properties

While the attractive qualities of a temporary magnet are constantly fluctuating, they are constant for a permanent magnet.

Stability 

The stability of the permanent magnet is greater than a temporary magnet, on the flip side the stability temporary magnet is less than the permanent magnet 

Materials

A permanent magnet is a kind of magnet that is made of solid materials, whereas a temporary magnet is a magnet that is made of spongy materials.

Ferromagnetic

Hard ferromagnetic always includes in the category of permanent magnetic, whereas soft ferromagnetic includes in the category of temporary magnetic.

Electrical Power

The permanent magnet does not need any electrical power to act as a magnet while the temporary magnet always needs any electrical power to act as a magnet.

Magnetic Power

A permanent magnet has unvarying magnetic power, on the flip side a temporary magnet has varying magnetic power.

Domain

A temporary magnet's domain, once arranged in order, can be changed, but a permanent magnet's domain, once set up, cannot be.

Disappear magnetic field

A temporary magnet's magnetic field vanishes when the outer magnetic field is reduced, but a permanent magnet's magnetic field does not readily vanish when the outer magnetic field is reduced.

The primary distinction between a permanent magnet and a temporary magnet is that a permanent magnet is one whose magnetic properties never change, while a temporary magnet's magnetic properties always change.

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Explore more information:

  1. Properties of Diamagnetic Materials
  2. Properties of Ferromagnetic Materials