The magnetic induction in air at a distance d from an isolated point pole of strength m unit will be

\frac{m}{d}

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\frac{m}{d^{2}}

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m d

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m d^{2}

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Solution

The correct option is B $\frac{m}{d^{2}}$

$B = \frac{m}{d^{2}}$ in C.G.S. system.

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The magnetic induction in air at a distance d from an isolated point pole of strength m unit will be

The correct option is B md2 B=md2 in C.G.S. system.

The correct option is B $\frac{m}{d^{2}}$

$B = \frac{m}{d^{2}}$ in C.G.S. system.