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NCERT Class XII Chapter
Electrostatic Potential and Capacitance
Questions With Solutions

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Question : 2 of 37
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A regular hexagon of side 10 cm has a charge 5 μC at each of its vertices.
Calculate the potential at the centre of the hexagon.
Solution:  
V = 6 × 14πε0qr\frac{1}{4\pi\varepsilon_0} \frac{q}{r}
or V = 6 × 9 × 10910^{9} × 5×10−610×10−2\frac{5 \times 10^{-6}}{10 \times 10^{-2}}
or V = 2.7 × 10610^{6} volts
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