A cloud is at a potential of 8 xx 10^(6)...

A cloud is at a potential of `8 xx 10^(6)` volt relative to the ground. A charge of 80 coulomd is transferred in lightening stroke betwee the cloud and the gorund. Assuming the potential of the cloud of remain constant, the energy dissipated is

`6.4 xx 10^(8)` joule

`6.4 xx 10^(5)` joule

`10^(5)` joule

`10^(7)` joule

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