The coercivity of a small magnet where the ferromagnet gets demagnetized is 3 x 10 A m 1 The current required to be passed in a

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The coercivity of a small magnet where the ferromagnet gets demagnetized is 3 x 10 A m 1 The current required to be passed in a solenoid of length 10 cm and number o turns 100 so that the magnet gets demagnetized when inside the solenoid is O 30 mA O 60 mA O 3 A 06 A

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