Question

Assertion (A): An electromagnet is not a permanent magnet.

Reason (R): The magnetism of an electromagnet is only for the duration of current passing through its coil.

पर्याय

• Both A and R are true and R is correct explanation of the assertion.

• Both A and R are true but R is not the correct explanation of the assertion.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true and R is correct explanation of the assertion.

Explanation:

The assertion is true because electromagnets lose their magnetic properties once the electric current is turned off, unlike permanent magnets. The reason is also true and provides the correct explanation because it defines this temporary nature, stating that the magnetic field exists solely while the current flows through the coil. Therefore, the reason directly explains why an electromagnet cannot be classified as a permanent magnet.