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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Charge and Coulombs Law

  • question_answer
    Four charges are arranged at the corners of a square \[ABCD\], as shown in the adjoining figure. The force on the charge kept at the centre O is               [NCERT 1983; BHU 1999]             

    A)                    Zero                                 

    B)                    Along the diagonal \[AC\]

    C)                    Along the diagonal \[BD\]                                          

    D)                    Perpendicular to side \[AB\]

    Correct Answer: C

    Solution :

               We put a unit positive charge at O. Resultant force due to the charge placed at A and C is zero and resultant charge due to B and D is towards D along the diagonal BD.


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