Question

9. The magnetic field inside a long straight solenoid carrying current:
i). is zero
ii). Decrease as we move towards its end
iii). Increase as we move towards its end
iv). Is same at all points.​

Answer 1

Answer:

The magnetic field inside a long straight solenoid-carrying current is the same at all points. It is because the magnetic field in the solenoid is constant because the lines are completely parallel to each other.

Answer 2

Answer:

increase as we move towards it's end.