Question

An electric dipole of moment p is placed in an electric field of intensity E. The diple acquires a position such that the axis of the dipole makes and angle(theta) with the direction of the field. Assuming that the potential energy of the dipole to be zero when (theta=90degrees)the torque and the potential energy of the dipole will respectively be​

Answer 1

Answer:

torque = P × E

Explanation:

torque = r × f

ie; perpendicular distance × one of the force

BC ×. Eq.---------------(1)

consider. ∆ ABC

sin theta = BC / 2a

sin theta = BC / AC

BC = 2asin theta ------------(2)

substituting (2) and (1)

2asintheta × Eq

q × 2a × E sin theta

P E sin theta

ie;. torque = P× E

Answer 2

Explanation:

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