The power of a pump that takes 10 s to lift 100 kg of water to a tank situated at a height of 20 m is :

2 \times 10^{4} W

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2 \times 10^{3} W

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20 W

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1 k W

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Solution

The correct option is B $2 \times 10^{3} W$
$p = \frac{m g h}{t}$
$= \frac{100 \times 10 \times 20}{10}$
$= 2 k W$ or $2 \times 10^{3} W$

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Similar questions

g = 10 m s^{- 2}

What is the power of a pump which takes 10 seconds to lift 100 kg of water to a water tank situated at a height of 20 m? Take $g = 10 m s^{- 2}$

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