The major difference between an electromagnet and permanent magnet is that the former can have a magnetic field when electric current flows through it and disappears when the flow of the current stops. On the other hand, permanent magnets are made up of magnetic material that is magnetized and has its own magnetic field. It will always displays the magnetic behaviour.

You are watching: How is an electromagnet different from a bar magnet

*

Difference Between Electromagnet and Permanent Magnet

As the name suggests permanent magnet magnetic field is permanent and electromagnets magnetic field depends upon the flow of the electrical current. The electromagnet constitutes a coil made of wire which acts as a magnet when current is passed through it. Usually, a ferromagnetic material like steel is wrapped by an electromagnet to enhance its magnetic field.


Difference Between Electromagnet and Permanent Magnet
ElectromagnetPermanent Magnet
The magnetic properties are displayed when current is passed through itMagnetic properties exist when the material is magnetized
The strength is adjusted depending upon the amount of flow of currentThe strength depends upon the nature of the material used in its creation
Removal of magnetic properties is temporaryOnce magnetic properties is lost, it becomes useless
It requires a continuous supply of electricity to maintain its magnetic field.It doesn’t require a continuous supply of electricity to maintain its magnetic field
It is usually made of soft materialsIt is usually made of hard materials
The poles of this kind of magnet can be altered with the flow of currentThe poles of this kind of magnet cannot be changed.

See more: 1/4 Cup Raisins Calories - Natural Raisins Nutrition Facts


These were some difference between an electromagnet and permanent magnet. If you wish to find out more, download BYJU’S – The learning app.

RELATED ARTICLES:


Permanent Magnets and Magnetic BehaviourElectromagnetism

Test your knowledge on Electromagnet and permanent magnet
Q5

*

Put your understanding of this concept to test by answering a few MCQs. Click ‘Start Quiz’ to begin!

Select the correct answer and click on the “Finish” buttonCheck your score and answers at the end of the quiz