Permanent magnetismMedium
Question
A magnet 10 cm long and having a pole strength 2 A-m is deflected through 30o from the magnetic meridian. The horizontal component of earth′s induction is 0.32 × 10-4 T, Then the value of deflecting couple is :-
Options
A.32 × 10-7 N-m
B.16 × 10-7 N-m
C.64 × 10-7 N-m
D.48 × 10-7 N-m
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