The S.I. unit of pole strength is

A m^{2}

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A m

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A m^{- 1}

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A m^{- 2}

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Solution

The correct option is D $A m$
Pole strength, $m = \frac{M a g n e t i c m o m e n t}{2 l} = \frac{A m^{2}}{m} = A m$

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Similar questions

Match the following :

The pole strength of a magnet is 40 Am. Calculate the magnetic intensity at a distance of 20cm.

2 Am

4 cm

(i)

(in {Am}^{2})

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