Question

Electromagnets gain or lose their magnetic properties based on the supply of the electrical current.

• A. True
• B. False

Answer 1

The correct option is A

True

An electromagnet operates based on the supply of electricity.

A simple electromagnet is created by wrapping conductive wire in tight coils around a core (refer the diagram). The magnetic force is generated just like a permanent magnet when the electricity is turned on and stops when the electrical current is disconnected. The magnetic field strength of this electromagnet (iron nail) is proportional to the magnitude of the current flowing in the wire of the electromagnet. So, the given statement is true.