Question

The strength of each magnet reduces to half when it is cut along its length into the equal parts magnetic field strength of a solenoid. The polarity of the solenoid can be determined by ____________.

Options

• Use of compass needle

• Right-hand thumb rule

• Fleming left-hand rule

• Either use of compass needle or Right-hand thumb rule

Answer 1

The strength of each magnet reduces to half when it is cut along its length into the equal parts magnetic field strength of a solenoid. The polarity of the solenoid can be determined by Either use of a compass needle or the Right-hand thumb rule.

Explanation:

Both can be used to determine the solenoid's polarity.