When does the torque acting on an electric di | vedclass

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Question

(C) The torque $	au$ acting on an electric dipole of dipole moment $\vec{p}$ in a uniform electric field $\vec{E}$ is given by the formula: $	au = p

Vedclass · Accepted Answer

When the dipole is perpendicular to the field.

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(C) The torque $	au$ acting on an electric dipole of dipole moment $\vec{p}$ in a uniform electric field $\vec{E}$ is given by the formula: $	au = pE \sin 	heta$,where $	heta$ is the angle between the dipole moment vector $\vec{p}$ and the electric field vector $\vec{E}$.To maximize the torque,the value of $\sin 	heta$ must be maximum.The maximum value of $\sin 	heta$ is $1$,which occurs when $	heta = 90^{\circ}$.Therefore,the torque is maximum when the electric dipole is placed perpendicular to the uniform electric field.

When does the torque acting on an electric dipole in a uniform electric field become maximum?

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