Choose the correct option. The magnetic field inside a long straight solenoid-carrying current

Q. Choose the correct option.

The magnetic field inside a long straight solenoid-carrying current

(a) is zero

(b) decreases as we move towards its end

(c) increases as we move towards its end

(d) is the same at all points

Answers:-
The magnetic field inside a long straight current-carrying solenoid is uniform which is represented by parallel lines. Hence it is same at all points.