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12th Class Physics Electric Charges and Fields Question Bank Case Based (MCQs) - Electric Charges and Fields

  • question_answer
    When an electric dipole is held at an angle in a uniform electric field, the net force F and torque \[\tau \]on the dipole are:

    A) \[F=0,\,\tau =0\]                       

    B) \[F\ne 0,\,\tau \ne 0\]

    C) \[F=0,\,\tau \ne 0\]                    

    D) \[F\ne 0,\,\tau =0\]

    Correct Answer: C

    Solution :

    (c) \[F=0,\,\tau \ne 0\] Net force is zero and torque arts on the dipole, trying to align p with E.


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