A standard bar magnet has a magnetic moment M and pole stren... — Physics | Mockzy | Mockzy

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A standard bar magnet has a magnetic moment M and pole strength m. If it is sliced longitudinally into three identical thin magnets, what will be the magnetic moment and pole strength of each piece?

A

M/3 , m

B

M/3 , m/3

C

M , m/3

D

M/9 , m/3

A galvanometer has resistance of 30 Ω and a current of 1 mA is needed to give fu

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