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An electric dipole is held in a uniform electric field. Show that the net force acting on it is zero. |
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Answer» Solution :Consider an ELECTRIC dipole AB HELD in a uniform electric field held at an angle `theta` with the direction of electric field `vec E`. Now FORCE acting on +Q charge, `F_1 = qE` along direction of `vec E ` and force acting on -q charge, `F_2 = qE` in a direction opposite to that of `vec E`. SINCE `F_1 and F_2` are equal but in mutually opposite directions, hence the net linear force acting on the electric dipole will be zero. |
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