Advertisements
Advertisements
प्रश्न
What is the meaning of the symbol kWh? What quantity does it represent?
Advertisements
उत्तर
Kilowatt- hour (kWh) is the commercial unit of measurement of electrical energy. One-kilowatt hour can be defined as the amount of electrical energy consumed when an electrical appliance of power rating 1 kilowatt is used for 1 hour.
APPEARS IN
संबंधित प्रश्न
In what way does the temperature of water at the bottom of a waterfall differ from the temperature at the top? Explain the reason.
A pendulum is oscillating on either side of its rest position. The correct statement is:
What type of energy is possessed : by the piece of stone which is thrown away on releasing the stretched rubber strings of catapult?
What is the difference between potential energy and kinetic energy?
A stone is thrown upwards as shown in the diagram. When it reaches P, which of the following has the greatest value of the stone?
Name the energy transfers which occur when : a torch is on
Which one of the following is not the unit of energy?
Which of the following energy change involves frictional force?
In the case of negative work, the angle between the force and displacement is
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. The work done against the gravitational force will be (g = 10 m s–2)
