Advertisements
Advertisements
प्रश्न
Distinguish between work and power.
Advertisements
उत्तर १
Work is said to be done only when the applied force on a body makes the body move but power is the rate of doing work.
The SI unit of work is 'joules' and that of power is 'watt'.
उत्तर २
Work does not depend on time, while the power depends on time.
Power is the work done in unit time.
APPEARS IN
संबंधित प्रश्न
Explain briefly why the work done by a fielder when he takes a catch in a cricket match is negative.
Work is said to be done by a forte only when ................
Define 1 joule of work.
What are the units of (a) work, and (b) energy?
The velocity of a car increases from 54 km/hr to 72 km/hr. How much is the work done if the mass of the car is 1500 kg?
Explain the difference between a uniform linear motion and a uniform circular motion.
Name the force acting away from the centre of circular path.
Fill in the boxe to show the corresponding energy transformation.
Give an example
Chemical energy changes to electrical energy.
An electric motor pump is 60% efficient and is rated 2.5 H.P. Calculate the maximum load it can lift through a height of 10m in 8 sec. (1 H.P. = 750 W).
