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Sketch a graph to show how charge Q give...

Sketch a graph to show how charge Q given to a capacitor of capacity C varies with the potential difference V.

Text Solution

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Initially, the graph between V and Q is straight line. However, beyond a certain stage, some leakage fo charge starts and V does not increase with increasing Q. This variation si shows in Fig.
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Knowledge Check

  • The energy stored in a capacitor of capacity C and potential V is given by

    A
    `0.5C^(2)V`
    B
    `0.5CV^(2)`
    C
    0.5 CV
    D
    `0.5C^(2)V^(2)`

  • A capacitor of capacity C is charged to a potential difference V and another capacitor of capacity 2C is charged to a potential difference 4V . The charged batteries are disconnected and the two capacitors are connected with reverse polarity (i.e. positive plate of first capacitor is connected to negative plate of second capacitor). The heat produced during the redistribution of charge between the capacitors will be

    A
    `(125CV^2)/3`
    B
    `(50CV^2)/3`
    C
    `2CV^2`
    D
    `(25CV^2)/3`

  • The charge and energy stored in the capacitor of capacity 32muF , when it is charged to a potential difference of 0.6 kV are respectively

    A
    `1.92xx10^(-2)C,5.76J`
    B
    `2.92xx10^(-2)C,5.76J`
    C
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