Question

The magnetic field of a solenoid can be made stronger by

• 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

Answer: (A), (B)

The correct options are
A

The number of turns of the solenoid is increased.

B

The current passing through the coil is increased

The strength of magnetic field of a solenoid can be increased by

i) increasing the number of turns

ii) increasing the current flowing through it

iii) inserting a soft iron core inside it.