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

  • question_answer
    On decreasing the distance between the two charges of a dipole which is perpendicular to electric field and decreasing the angle between the dipole and electric field, the torque on the dipole

    A) increases           

    B)        decreases

    C) remains same

    D)        cannot be predicated

    Correct Answer: B

    Solution :

    [b] Since \[\tau =pE\sin \theta \] on decreasing the distance between the two charges, and on decreasing angle \[\theta \] between the dipole and electric field, \[\sin \theta \] decreases therefore torque decreases.


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