Advertisements
Advertisements
प्रश्न
The S.I. unit of power is ..........
Advertisements
उत्तर
The S.I. unit of power is watt.
APPEARS IN
संबंधित प्रश्न
The blades of a windmill sweep out a circle of area A.
- If the wind flows at a velocity v perpendicular to the circle, what is the mass of the air passing through it in time t?
- What is the kinetic energy of the air?
- Assume that the windmill converts 25% of the wind’s energy into electrical energy, and that A = 30 m2, v = 36 km/h and the density of air is 1.2 kg m–3. What is the electrical power produced?
Rajan exerts a force of 150 N in pulling a cart at a constant speed of 10 m/s-1. Calculate the power exerted.
1 H.P. is equal to
Name the physical quantity which is measured in calorie. How is it related to the S.I. unit of the quality?
A quarter horse power motor runs at a speed of 600 r.p.m. Assuming 40% efficiency, the work done by the motor in one rotation will be
An engine pumps up 200 kg of water through a height of 20 m in 10 seconds. If the efficiency of the engine is 80%. Calculate the power of the engine.
Calculate the power of a crane in watts, which lifts a mass of 100 kg to a height of 10 m in 20s.
Unit of power used in mechanical engineering is ______.
Name the quantity which is measured in kW.
Name the quantity which is measured in Wh.
