Advertisements
Advertisements
प्रश्न
State larger units of power.
उत्तर
The larger units of power are:
1 Kilowatt = 1000 watt 103 W
1 Megawatt = 1000,000 W = 106 W.
APPEARS IN
संबंधित प्रश्न
Power spent by a body depends on the time for which it does work.
A force of 30 N acts on a body and moves it through a distance of 5 m in the direction of force. Calculate the work done by the force.
A boy throws a rubber ball vertically upwards. What type of work, positive or negative, is done : by the force applied by the boy?
(a) by the force applied by the boy?
(b) by the gravitational force of earth?
How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?
What is the relationship between Nm and dyne cm?
Is the motion of moon around the earth in circular path an accelerated motion?
A boy of mass m climbs up a staircase of vertical height h.
- What is the work done by the boy against the force of gravity?
- What would have been the work done if he uses a lift in climbing the same vertical height?
Define the term work. Name the CGS and SI unit of work.
What should be the characteristic of a source of energy?
A water pump raises 50 kg of water through a height of 25 m in 5s. Calculate the power supplied by the pump (Take: g = 10 N kg−1).
A ______ should act on an object.
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Suma is swimming in a pond.
