1.

Two unlike charges of magnitude \[q\] are separated by a distance \[2d\]. The potential at a point midway between them is                                                                            [JIPMER 1999]

A.            Zero
B.                                      \[\frac{1}{4\pi {{\varepsilon }_{0}}}\]
C.            \[\frac{1}{4\pi {{\varepsilon }_{0}}}.\frac{q}{d}\]     
D.            \[\frac{1}{4\pi {{\varepsilon }_{0}}}.\frac{2q}{{{d}^{2}}}\]
Answer» B.                                      \[\frac{1}{4\pi {{\varepsilon }_{0}}}\]


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