Question

The strength of magnetic field along the axis of solenoid coil:

a) Increases on increasing current flowing through the solenoid coil

b) Increases on increasing the number of turns in the solenoid coil

c) Increases on introducing a soft iron core inside the solenoid coil

d) All of the above​

Answer 1

Answer:-

(d) All of the above is the correct option.

Reasons:-

The magnetic field around the solenoid always depends on the following factors:-

•》The number of turns of the coil.

•》The strength of current flowing through the coils.

The current is always directly propotional to the above factors.