A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carry
Channel: Doubtnut
Date: 2020-01-03

A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The coercivity of the bar magnet is :