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JEE Main Physics Class 12 Magnetism and Matter Questions

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Question : 4

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The coercivity of a magnet is 5×103A∕m. The amount of current required to be passed in a solenoid of length 30‌cm and the number of turns 150 , so that the magnet gets demagnetised when inside the solenoid is ______ A.

[8 Apr 2024 Shift 2]

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