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The magnetic flux near the axis and in...

The magnetic flux near the axis and inside the air core solenoid of length `60 cm` carrying current 'f' is `1.57 xx 10^(-6) Wb`. Its magnetic moment will be (cross-sectional area of a solenoid is very small as compared to its length.
`mu_(0)= 4pi xx 10^(-7) `SI unit )

A

`0.25Am^2`

B

`0.5Am^2`

C

`0.75Am^2`

D

`1Am^2`

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The correct Answer is:
C
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