Question

An electric dipole is placed in a uniform electric field of strength ‘E’ at an angle θ with field

a) What is the force on each end of the dipole

b) Arrive at the expression for the torque acting on the dipole

c) When will the torque be i) maximum ii) minimum

d) What happens to an electric dipole when it is placed in a non uniform electric field?​

Answer 1

Explanation:

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Consider a dipole with charges +q and –q forming a dipole since they are a distance d away from each other. Let it be placed in a uniform electric field of strength E such that the axis of the dipole forms an angle θ with the electric field.