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Dimensional Analysis

Current I i...

Question

Current $I$ is flowing in a coil of area $A$ and number of turns is $N$ , then magnetic moment of the coil is $M$ equal to

A

N I A

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B

N I / A

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C

N I / \sqrt{A}

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D

N^{2} A I

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Solution

The correct option is A $N I A$
Magnetic moment $M = N I A$

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