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  4. Two equal and opposite point charges each of one coulomb are placed at a distance of one metre from each other. The potential at a point midway between the two point charges will be

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Q. Two equal and opposite point charges each of one coulomb are placed at a distance of one metre from each other. The potential at a point midway between the two point charges will be

Electrostatic Potential and Capacitance

Solution:

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Potential is a scalar quantity.
Potential at point $O$ due to the given charge distribution is
$V=\frac{1}{4 \pi \varepsilon_{0}}\left[\frac{1}{0.5}+\frac{(-1)}{0.5}\right]=$ zero volt