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The magnetic moment of a current (l) carrying circular coil of radius (r) and number of turns (n) varies as

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The magnetic moment of a current (l) carrying circular coil of radius (r) and number of turns (n) varies as

(a) 1/r2

(b) 1/r

(c) r

(d) r2

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1 Answer

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Best answer

Correct option (d) r2

Explanation:

The magnetic moment of a current carrying conductor = i.n πr2 = niA.

i.e. Magnetic moment ∝ r2

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