Question

Which of the following is not a similarity between a current carrying solenoid and a bar magnet?

• A. 5µ₀i/12r
• B. 5µ₀i/6r
• C. 1µ₀i/12r
• D. µ₀i/2r

Answer 1

The correct option is C

1µ₀i/12r

A current-carrying solenoid behaves like a bar magnet. However, the strength and the direction of the magnetic field of the solenoid can be changed by changing the strength and the direction of the current flowing through it, but the same for a bar magnet remains constant.