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A regular hexagon of side $10\;cm$ has a charge $10 \mu C$ at each of its vertices. Calculate the potential at the centre of the hexagon.

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$ 6 \times \large\frac{1}{4 \pi \in_0} \frac{q}{r}$
Hence D is the correct answer.
answered Jun 10, 2014 by meena.p
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