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

  • question_answer
    Two charged spheres separated at a distance d exert a force \[F\]on each other. If they are immersed in a liquid of dielectric constant 2, then what is the force (if all conditions are same)                   [AIIMS 1997; MH CET 2003]

    A)                    \[\frac{F}{2}\]

    B)                                              \[F\]

    C)                    \[2F\]                              

    D)                    \[4F\]

    Correct Answer: A

    Solution :

                 \[F\propto \frac{1}{K}\] i.e. \[\frac{{{F}_{medium}}}{{{F}_{air}}}=K\]


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