A long solenoid has 200 turns per cm and carries a current of 2.5 amps. The magnetic field at its
Channel: Doubtnut
Date: 30/08/2020

A long solenoid has 200 turns per cm and carries a current of 2.5 amps. The magnetic field at its centre is `(mu_(0)=4pixx10^(-7)"weber"//amp-m)`