Question

Strength of magnetic field produced by a current carrying solenoid does not depend upon ______.

Options

• number of turns in the solenoid

• direction of the current flowing through it

• radius of solenoid

• material of core of the solenoid

Answer 1

Strength of magnetic field produced by a current carrying solenoid does not depend upon radius of solenoid, and direction of the current flowing through it.

Explanation:

The magnetic field strength of an ideal solenoid depends only on the current, the number of turns per unit length, and the core material. Changing the current direction only flips the magnetic poles without changing the field strength, while the solenoid's radius is completely absent from the formula and has no effect on its magnitude.