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The voltage of clouds is 4 xx 1...

The voltage of clouds is ` 4 xx 10 ^( 6 ) ` volt with respect to ground. In a a lightening strike lasting 100 m sec, a charge of 4 coulomb is delivered to the ground. The power of lightening strike is

A

160 MW

B

80 MW

C

20 MW

D

500 kW

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The correct Answer is:
B
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