Question

The B-H curve for a ferromagnet is shown in the figure. The ferromagnet is placed inside a ling solenoid with turns/cm.. The current that should be passed in the solenoid to demagnetise the ferromagnet completely is:

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A

B

C

D

None of these

Medium
JEE Mains
Updated on : 2022-09-05
Solution
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Correct option is B)







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