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Home  >>  AIMS  >>  Class12  >>  Physics  >>  Electric Charges and Fields
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Four charges, each equal to q, are placed at four vertices of a regular pentagon. The distance of each corner from the centre is a. Find the electric field at the centre of the pentagon.

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The electric field at the centre of the pentagon is $\frac{1}{4 \pi \in_0} \frac{q}{a^2}$
Hence A is the correct answer.
answered May 30, 2014 by meena.p

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