Electromagnets are called temporary magnets.

The metal used to make temporary magnets

(A ): In electromagnetic wave, electric and magnetic fields oscillate in the same plane and in the same phase. (R) Electric field is the primary energy carrier in the electromagnetic wave.

State two differences between an electromagnet and a permanent magnet.

State two advantages of an electromagnet over a permanent magnet.

You have been provided with a solenoid AB. Give one advantage of an electromagnet over a permanent magnet.

(A) : In an electromagnetic wave, the electric and magnetic fields oscillate in phase (R) : In an electromagnetic wave, the electric and magnetic fields oscillate out of phase.

In the electromagnetic wave the electric and magnetic wave are not related as

An electromagnet with soft iron core is a temporary magnet.

What do you mean by temporary magnets?

Assertion : Electromagnetic waves are transverse in nature Reason : The electric and magnetic fields in electromagnetic waves are perpendicular to each other and to the direction of propagation.