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प्रश्न
The S.I. unit of power is ..........
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उत्तर
The S.I. unit of power is watt.
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संबंधित प्रश्न
A body is moving unidirectionally under the influence of a source of constant power. Its displacement in time t is proportional to ______.
Power P= ............ /time taken.
1 H.P. = .........
Match the following
| column A | Column B |
| A stone at a height | power |
| A Moving ball | joule |
| Energy | work done in 1 s |
| Power | potential energy |
| Watt | kinetic energy |
A pump raises water by spending 4×105J of energy in 10s. Find the power of the pump.
Name the physical quantity which is measured in calorie. How is it related to the S.I. unit of the quality?
A ball with a velocity of 5 ms−1 impinges at an angle of 60˚ with the vertical on a smooth horizontal plane. If the coefficient of restitution is 0.5, find the velocity and direction after the impact.
The average work done by a human heart while it beats once is 0.5 J. Calculate the power used by heart if it beats 72 times in a minute.
Unit of power used in mechanical engineering is ______.
Name the quantity which is measured in kWh.
