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Show that net force acting on an electri...

Show that net force acting on an electric dipole held in a uniform electric field is zero.

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Consider an electric dipole AB held in a uniform electric field held at an angle ` theta` with the direction of electric field ` oversetto E . ` Now force acting on +q charge `F_1 =qE ` along direction of ` overset to E ` and force acting on -q
charge `F_2=qE ` in a direction opposite to that of ` oversetto E ` Since `F_1 and F_2 ` are equal but in mutually opposite direction, hence the net translational force acting on the electric dipole will be zero.
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