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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical PowerMedium2 minPYQ_2006

PhysicsMediumsingle choice

The voltage of clouds is $4 \times 1 0^{6}$ 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

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Answer:

Solution:

Work done $=$ charge $\times$ potential difference $W = 4 \times (4 \times 1 0^{6} - 0) = 16 \times 1 0^{6} J$ . Power of the lightening strike, $P = \frac{W}{t}$ $= \frac{16 \times 1 0 ^{6}}{100 \times 1 0 ^{- 3}} = 160 MW .$

Stream:AIIMSSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical Power

⏱ 2mℹ️ Source: PYQ_2006

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