Question

An electromagnet made up of soft iron retains its magnetism after the electric current is turned off.

• A. True
• B. False

Answer 1

The correct option is B False

1. If a soft iron rod is placed inside an electromagnet coil, the electromagnetism becomes stronger.
2. The soft iron rod acts as a temporary magnet as long as there is current in the coil.
3. If we stop the flow of current through a soft iron core, it will lose magnetism and come in the initial state.

Hence, the given statement is false.