Question

Statement 1: Electromagnets are permanent magnets.

Statement 2: In cranes, electromagnets can be used to lift heavy loads.

• A. Only statement 1 is correct
• B. Only statement 2 is correct
• C. Both statements are correct
• D. Both statements are incorrect

Answer 1

The correct option is B Only statement 2 is correct

Electromagnets are temporary magnets which behave as magnets only when electric current is passed through them.
The strength of an electromagnet can be varied by varying the current in the circuit.
Hence, they can be made very strong.
In cranes, electromagnets are used to lift heavy loads.