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Capacitance of a conductor is 1muF. What...

Capacitance of a conductor is `1muF`. What charge is required to raise its potential to `100 V`?

Text Solution

Verified by Experts

The correct Answer is:
`1.8xx10^(4)m`
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Two parallel plates capacitors A and B having capacitance of 1 muF and 5 muF are charged separately to the same potential of 100 V. Now, the positive plate of A is connected to the negative plate of B and the negative plate of A to the positive plate of B. Find the final charges on each capacitors.

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Knowledge Check

  • The capacity of a sphere, which, when a charge of 0.5 C is placed on it, raises its potential by 100 volt is "_________" farad.

    A
    50
    B
    200
    C
    `5xx 10^(-3)`
    D
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  • A condenser of capacity 500 mu F is charged at the rate of 400 mu F per second. The time required to raise its potential by 40 V is.

    A
    50 s
    B
    100 s
    C
    20 s
    D
    10 s

  • Some charge is being given to a conductor. Then its potential : -

    A
    Is maximum at surface
    B
    Is maximum at centre
    C
    Is remain same throughout the conductor
    D
    Is maximum somewhere between surface and centre

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    The capacitance of a capacitor is 3 muF . If a charge of 108muC , exists on it, calculate its potential .

    If the capacitance of a conductor carrying a charge of 8 C is 0.005 F, calculate its potential.

    As isolated sphere has a capacitance 60 pF . (i) Calculate its radius. (ii) How much charge should be placed on it to raise its potential to 10^(4) V ?

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    A 16 muF capacitor , initially charged to 5 V, is started charging at t=0 by a source at the rate of 40 tmuCs^(-1) . How long will it take to raise its potential to 10 V?

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