A bar magnet has coercivity 4 x 103 Am It is desired to demagnetize it by inserting it inside a solenoid 12 cm long and having

Question

A bar magnet has coercivity 4 x 103 Am It is desired to demagnetize it by inserting it inside a solenoid 12 cm long and having 60 turns What current should be sent through the solenoid

Kunduz · Accepted Answer

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