A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The Coercivity of the bar magnet is:

A bar magnet is demagnetized by inserting it inside a solenoid of leng

1.	A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The Coercivity of the bar magnet is:
A.	285 A/m
B.	2600 A/m
C.	520 A/m
D.	1200 A/m
Answer» C. 520 A/m

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A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The Coercivity of the bar magnet is:

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