Question:
The coercivity of a small magnet where the ferromagnet gets demagnetised is 3 x 103 Am–1. The current required to be passed in a solenoid of length 10 cm and number of turns 100, so that the magnet gets demagnetised when inside the solenoid, is
The coercivity of a small magnet where the ferromagnet gets demagnetised is 3 x 103 Am–1. The current required to be passed in a solenoid of length 10 cm and number of turns 100, so that the magnet gets demagnetised when inside the solenoid, is
Updated On: Feb 15, 2025
- (A) 3A
- (B) 6A
- (C) 30 mA
- (D) 60 mA
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The Correct Option is A
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