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The dielectric strength of air is 3.0 xx...

The dielectric strength of air is `3.0 xx 10^6 V/m`. A parallel-plate air-capacitor has area `20 cm^2` and plate separation `0.10 mm`.Find the maximum rms voltage of an AC source which can be safely connected to this capacitor.

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The correct Answer is:
`3.0 kV`
`V_(0)=3xx10^(6)xxsqrt2xx10^(-3) ,V_(rms)=V_(@)/sqrt2=3 kV`
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