Question

What are the ways by which the magnetic field of a solenoid can be made stronger?

• A. The number of turns of the solenoid is increased.
• B. The current passing through the coil is increased.
• C. The length of the solenoid is increased.
• D. Both (a) and (b).

Answer 1

The correct option is D

Both (a) and (b).

The strength of the solenoid can be increased by increasing the number of turns or by increasing the current flowing through it.