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Electrostatics

JEE Main level, single correct, medium

1 of 311

Question 1 of 311

An electric dipole of moment $\vec{p}$ is placed in a uniform electric field $\vec{E}$ . The torque acting on the dipole is maximum when the angle between $\vec{p}$ and $\vec{E}$ is:

Show answer and solution

Answer: (A) $90^\circ$

Torque

\vec{\tau} = \vec{p} \times \vec{E} \implies \tau = p E \sin\theta

. Maximum torque occurs when

\sin\theta = 1 \implies \theta = 90^\circ

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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JEE Main Physics practice question on Electrostatics, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

An electric dipole of moment p⃗\vec{p}p​ is placed in a uniform electric field E⃗\vec{E}E. The torque acting on the dipole is maximum when the angle between p⃗\vec{p}p​ and E⃗\vec{E}E is:

JEE Main question paper PDF

More Physics practice

An electric dipole of moment $\vec{p}$ is placed in a uniform electric field $\vec{E}$ . The torque acting on the dipole is maximum when the angle between $\vec{p}$ and $\vec{E}$ is: