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  • An electric dipole moment is placed in a uniform electric field <img alt="\vec{E}" src="https://ent

An electric dipole moment \vec{\rho} is placed in a uniform electric field \vec{E}. The maximum torque experienced by the dipole is-

Option: 1

PE


Option: 2

P/E


Option: 3

E/P


Option: 4

\underset{P}{\rightarrow}.\underset{E}{\rightarrow}


Answers (1)

best_answer

Dipole moment is given by \vec{P}\vec{Z}=\vec{p} \times \vec{E}
for maximum torque, \tau_{\max } \theta$ will be $90^{\circ}
\begin{aligned} & \tau=P E \sin \theta \\ & \tau_{\text {max }}=P E \times \sin 90^{\circ} \quad\left[\because \sin 90^{\circ}\right.=l \\ & \tau_{\text {max }}=P E \end{aligned}

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shivangi.bhatnagar

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