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The dielectric strength of air is 3.0 xx...

The dielectric strength of air is `3.0 xx 10^(8)V//m`. A parallel plate air capacitor has area `20 cm^(2)` and plate separation `sqrt2mm`. Find the maximum rms voltage of an AC source which can be safely connected to this capacitor.

Text Solution

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The correct Answer is:
3.0kV
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Knowledge Check

  • A parallel plate air capacitor has plates of area 0.5 m^(2) and plate separation of 2 cm. if epsi_(0)=8.8xx10^(-12)C^(2)//N-m^(2) then the capacitance of the capacitor is

    A
    `1.1xx10^(-10)F`
    B
    `3.3xx10^(-10)F`
    C
    `2.2xx10^(-10)F`
    D
    `4.4xx10^(-10)F`

  • A parallel plate capacitor has capacitance of 1.0 F .If the plates are 1mm apart, area of the plates is

    A
    `1.1 xx 10^(5) m^(2)`
    B
    `2.1 xx 10^(8) m^(2)`
    C
    `0.5 xx 10^(8) m^(2)`
    D
    `1.6 xx 10^(8) m^(2)`

  • A parallel plate capacitor having a plate separation of 2mm is charged by connecting it to a 300v supply. The energy density is

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    B
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