1.

Electric potential at an equatorial point of a small dipole with dipole moment \[P\](r, distance from the dipole) is                                                                                          [MP PMT 2001]

A.            Zero
B.            \[\frac{P}{4\pi {{\varepsilon }_{0}}{{r}^{2}}}\]
C.            \[\frac{P}{4\pi {{\varepsilon }_{0}}{{r}^{3}}}\]           
D.            \[\frac{2P}{4\pi {{\varepsilon }_{0}}{{r}^{3}}}\]
Answer» B.            \[\frac{P}{4\pi {{\varepsilon }_{0}}{{r}^{2}}}\]


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