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Question: Two unlike charges of magnitude \(q\) are separated by a distance \(2d\). The potential at a point m...

Two unlike charges of magnitude qq are separated by a distance 2d2d. The potential at a point midway between them is

A

Zero

B

14πε0\frac{1}{4\pi\varepsilon_{0}}

C

14πε0.qd\frac{1}{4\pi\varepsilon_{0}}.\frac{q}{d}

D

14πε0.2qd2\frac{1}{4\pi\varepsilon_{0}}.\frac{2q}{d^{2}}

Answer

Zero

Explanation

Solution

Potential at mid point

O,V=kqd+k(−q)d=0O,V = \frac{kq}{d} + \frac{k( - q)}{d} = 0