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A bar magnet 8 cm long is placed in the ...

A bar magnet 8 cm long is placed in the magnetic merdian with the N-pole pointing towards geographical north . Two netural points separated by a distance of 6 cms are obtained on the equatorial axis of the magnet . If horizontal component of earth's field `=3.2xx10^(-5)T,` then pole strength of magnet is

A

0.5 A m

B

1 A m

C

0.25 A m

D

2 A m

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The correct Answer is:
A
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