A bar magnet when placed at an angle of `30^(@)` to the direction of magnetic field field induction of `5xx10^(-2)T`, experiences a moment of couple `25xx10^(-6) N-m`. If the length of the magnet is 5cm its pole strength is
A
`2xx10^(–2) A - m `
B
`5xx10^(–2 ) A-m`
C
2 A-m
D
5 A-m
Text Solution
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The correct Answer is:
A
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