Question:
The coercivity of a bar magnet is 100 A m It is to be
Last updated: 6/5/2023
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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