There are `50` turns of a wire in every `cm` langth of a long solenoid. If `4` ampere
Channel: Doubtnut
Date: 2020-08-23

There are `50` turns of a wire in every `cm` langth of a long solenoid. If `4` ampere current is flowing in the solenoid, the approximate value of magnetic field along its axis at an internal point and at one end will be respectively