Question

Name any two factors on which the magnitude of the magnetic field due to this solenoid depends. 

Answer 1

1. Current (I): The strength of the magnetic field is directly proportional to the current passing through the solenoid. A higher current produces a stronger magnetic field.
2. Number of turns per unit length (n): The magnetic field strength is directly proportional to the number of turns of wire per unit length of the solenoid. More turns of wire in a given length result in a stronger magnetic field.