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4. Work and Energy
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Q7 of 146 Page 162

What is the power of a body which is doing work at the rate of one joule per second?

The SI unit of power is the watt (W), which is doing work at the rate of one joule per second.


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How many watts equal one horse power?

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Name the physical quantity whose unit is watt.

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A body does 1200 joules of work in 2 minutes. Calculate its power.

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Questions · 146
4. Work and Energy
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