JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Critical Thinking

  • question_answer
    Consider two points 1 and 2 in a region outside a charged sphere. Two points are not very far away from the sphere. If E and V represent the electric field vector and the electric potential, which of the following is not possible [AMU 2001]

    A)            \[|{{\overrightarrow{E}}_{1}}|\,=\,|{{\overrightarrow{E}}_{2}}|,\ {{V}_{1}}={{V}_{2}}\]

    B)                                      \[{{\overrightarrow{E}}_{1}}\ne {{\overrightarrow{E}}_{2}},\ {{V}_{1}}\ne {{V}_{2}}\]

    C)            \[{{\overrightarrow{E}}_{1}}\ne {{\overrightarrow{E}}_{2}},\ {{V}_{1}}={{V}_{2}}\]              

    D)            \[|{{\overrightarrow{E}}_{1}}|\,=\,|{{\overrightarrow{E}}_{2}}|,\ {{V}_{1}}\ne {{V}_{2}}\]

    Correct Answer: D

    Solution :

               Outside the charged sphere, (for equal distances from centre) if electric fields at two points are same then both points must be equipotential points.


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