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NEET-XII-Physics

02: Electrostatic Potential And Capacitance

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Qstn# 7-a Prvs-QstnNext-Qstn
  • #7-a
    What is the total capacitance of the combination?
    (b) Determine the charge on each capacitor if the combination is connected to a 100 V supply.
    Ans : Capacitances of the given capacitors are



    For the parallel combination of the capacitors, equivalent capacitoris given by the algebraic sum,



    Therefore, total capacitance of the combination is 9 pF.
    (b) Supply voltage, V = 100 V

    The voltage through all the three capacitors is same = V = 100 V

    Charge on a capacitor of capacitance C and potential difference V is given by the relation,

    q = VC ... (i)

    For C = 2 pF,



    For C = 3 pF,



    For C = 4 pF,


  • #7-b
    Determine the charge on each capacitor if the combination is connected to a 100 V supply.
    Ans : Supply voltage, V = 100 V

    The voltage through all the three capacitors is same = V = 100 V

    Charge on a capacitor of capacitance C and potential difference V is given by the relation,

    q = VC ... (i)

    For C = 2 pF,



    For C = 3 pF,



    For C = 4 pF,