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In the circuit shown in figure, initiall...

In the circuit shown in figure, initially the terminals A and P are connected together to change `4muF` capacitor. Then battery is disconnected and the terminals P and B are connected together. Then the ratio of final charge and initial charge on `4muF` capacitor is:

A

`1//3`

B

`3//4`

C

`4//5`

D

`5//6`

Text Solution

Verified by Experts

The correct Answer is:
A
Let charge on `4 muF` capacitor when switch in position A is Q.
Charge on `4muF` capacitor after switch is shifted to position B.
`Q' = 4/(4+2)Q = (2Q)/3`
ratio `=(2Q//3)/(Q) = 2/3`
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Knowledge Check

  • The charge on capacitor 4muF is

    A
    `2 muC`
    B
    `6 muC`
    C
    `10 muC`
    D
    `12 muC`

  • In the given circuit the charge on the plates of 1 mu F capacitor, when 100 V battery is connected to the terminals A and B will be

    A
    100 `mu`C
    B
    50 `mu`C
    C
    10 `mu`C
    D
    zero

  • In the circuit shown in figure, the ratio of charge on 5muF and 2muF capacitor is

    A
    `5/4`
    B
    `5/3`
    C
    `3/8`
    D
    none of these

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