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AIIMS2006PhysicsCurrent Electricity

The voltage of clouds is 4 10^6 volt with respect to ground. In a lightening strike lasting 100 msec , a charge of 4 coulombs is delivered to the ground. The power of the lightening strike is

Options

  1. A160 MW
  2. B80 MW
  3. C20 MW
  4. D500 MW .

Correct answer

A. 160 MW

Step-by-step solution

Work done = charge potential difference W=4 (4 10^6-0 )=16 10^6 ~J . Power of the lightening strike, P= W t = 16 10^6 100 10⁻³ =160 MW .

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