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प्रश्न
Fill in the blank with suitable word :
Power is the rate of doing ___________.
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उत्तर
Power is the rate of doing work.
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संबंधित प्रश्न
What is power?
Define 1 watt of power.
A lamp consumes 1000 J of electrical energy in 10 s. What is its power?
Define average power.
Calculate the work done by the brakes of a car of mass 1000 kg when its speed is reduced from 20 m/s to 10 m/s?
What is the power of a body which is doing work at the rate of one joule per second?
A body does 1200 joules of work in 2 minutes. Calculate its power.
A man weighing 500 N carried a load of 100 N up a flight of stairs 4 m high in 5 seconds. What is the power?
An electric heater uses 600 kJ of electrical energy in 5 minutes. Calculate its power rating.
In loading a truck, a man lifts boxes of 100 N each through a height of 1.5 m.
How much energy is transferred when one box is lifted?
