First slide

Electric dipole

Question

If an electric dipole is kept in a uniform electric field then which of the following quantities will be zero

Moderate

A

angular momentum
B

angular velocity about the centre of mass
C

linear acceleration of centre of mass
D

angular acceleration about centre of mass

Solution

Since a dipole carries equal and opposite charge so the net force acting on the dipole will be zero. So the linear acceleration of the dipole is zero. But the torque acting on the dipole is non zero hence the angular acceleration is not zero.

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