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JEE Main & Advanced Physics Electrostatics & Capacitance NEET PYQ - Electrostatics and Capacitance

  • question_answer
    The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is                      [NEET - 2018]

    A) Proportional to the square root of the distance between the plates

    B) Linearly proportional to the distance between the plates

    C) Independent of the distance between the plates

    D) Inversely proportional to the distance between the plates

    Correct Answer: C

    Solution :

    [c] For isolated capacitor Q = Constant
    \[{{\text{F}}_{\text{plate}}}\text{=}\frac{{{Q}^{2}}}{2A{{\varepsilon }_{0}}}\]
    F is Independent of the distance between plates.


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