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A lamp consumes 1000J of electrical energy in 10s. What will be its power?

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1000 W

100 W

0.1 W

0.01 W

answer is B.

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Detailed Solution

Concept- The amount of work done in a given amount of time is referred to as power. The SI unit of power is watts (W).
The mathematical expression would be written as-

Given,
Work done = 1000 J and time = 10 sec
Therefore,
Question Image

Hence, the correct answer is option 2.

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