Question

(i) State any two factors on which the strength of magnetic field produced by a current-carrying solenoid depends.

Hint:

To increase the magnetic field of a solenoid, either increase the current or increase the number of turns of wire.

Answer 1

The strength of the magnetic field produced by a current-carrying solenoid depends on the following factors:
1. Current through the solenoid: The strength of the magnetic field is directly proportional to the amount of current passing through the solenoid. More current produces a stronger magnetic field.
2. Number of turns per unit length: The magnetic field strength increases as the number of turns per unit length of the solenoid increases. A greater number of turns increases the overall magnetic field.