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The magnetic moment associated with the ...

The magnetic moment associated with the solenoid if it is closely wounded of 2000 turns and area of cross section is `1.6 xx 10^(-4) m^2`. It is carrying a current of 4 A allowing it to turn in horizontal plane is given by:

A

`1.5 Am^2`

B

`2 Am^2`

C

`1.28 Am^2`

D

`1.6 Am^2`

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