Advertisements
Advertisements
प्रश्न
Name the quantity which is measured in Wh.
Advertisements
उत्तर
Wh - Watt hour is measure of ENERGY.
APPEARS IN
संबंधित प्रश्न
A family uses 8 kW of power.
- Direct solar energy is incident on the horizontal surface at an average rate of 200 W per square meter. If 20% of this energy can be converted to useful electrical energy, how large an area is needed to supply 8 kW?
- Compare this area to that of the roof of a typical house.
Two coolies A and B do some work in time 1 minute and 2 minute respectively. The power spent is
1 H.P. is equal to
Choose one or more correct alternatives.
Power is a measure of the ______.
- The rapidity with which work is done.
- Amount of energy required to perform the work.
- The slowness with which work is performed.
- Length of time.
What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop?.
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.
Unit of power used in mechanical engineering is ______.
Name the quantity which is measured in kWh.
Name the quantity which is measured in kW.
