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

  • question_answer
    The force between two small charged spheres having charges of \[1\times {{10}^{-7}}C\] and \[2\times {{10}^{-7}}C\]

    A) \[4.5\times {{10}^{-}}^{2}N\]

    B) \[4.5\times {{10}^{-}}^{3}N\]

    C) \[5.4\times {{10}^{-2}}N\]

    D) \[5.4\times {{10}^{-3}}N\]

    Correct Answer: B

    Solution :

    [b] Here, \[{{q}_{1}}=1\times {{10}^{-7}}C,{{q}_{2}}\] and \[2\times {{10}^{-7}}C,\] \[r=20cm=20\times {{10}^{-2}}m\]


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