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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Self Evaluation Test - Electric Chages and Fields

  • question_answer
    When an electric dipole \[\vec{P}\] is placed in a uniform electric field E then at what angle between P and \[\vec{E}\] the value of torque will be maximum?

    A) \[90{}^\circ \]  

    B) \[0{}^\circ \]

    C) \[180{}^\circ \]

    D) \[45{}^\circ \]

    Correct Answer: A

    Solution :

    [a] \[\vec{\tau }=\vec{P}\times \vec{E}=PE\sin \theta \] \[\text{For }q=90{}^\circ ,{{\vec{\tau }}_{\max }}=PE\]


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