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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Capacitance

  • question_answer
    The potentials of the two plates of capacitor are +10V and ?10 V. The charge on one of the plates is 40 C. The capacitance of the capacitor is                                  [AFMC 2005]

    A)            2 F

    B)                                      4 F

    C)            0.5 F                                         

    D)            0.25 F

    Correct Answer: A

    Solution :

               The potential difference across the parallel plate capacitor is \[10V-(-10V)=20V.\] Capacitance \[=\frac{Q}{V}=\frac{40}{20}=2F.\]


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