The coercivity of a bar magnet is 100 A m It is to be

Last updated: 6/5/2023

The coercivity of a bar magnet is 100 A m It is to be demagnetised by placing it inside a solenoid of length 100 cm and number of turns 50 The current flowing in the solenoid will be 1 4 A 2 2 A 3 1 A