Question

The magnetic field of a solenoid can be made stronger by

• A. increasing the number of turns
• B. increasing the magnitude of current flowing through it
• C. increasing the length of the solenoid
• D. inserting a hard iron core

Answer 1

Answer: (A), (B)

increasing the magnitude of current flowing through it

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.