Advertisements
Advertisements
प्रश्न
Name a device in which solar energy is converted into electricity state its two uses.
Advertisements
उत्तर
Solar cell.
Its two uses are:
(i) All artificial satellites and space probes mainly depend upon electricity generated by solar cells.
(ii) Solar cells are used for lighting, operating water pumps, running radio and television sets in remote areas and traffic signals, etc.
APPEARS IN
संबंधित प्रश्न
Name five different forms of energy.
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same ?
Give one relevant example for the following transformation of energy:
Electrical energy to mechanical energy.
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is at the ground.
State the energy changes in the following case while in use:
an electric toaster.
Select the renewable and non-renewable sources of energy from the following:
Coal
Two bodies A and B of masses m and M (M ≫ m) have same kinetic energy. Which body will have more momentum?
Calculate the decrease in the kinetic energy of a moving body if its velocity reduces to half of the initial velocity.
Give one example when:
Electric energy changes to mechanical energy.
What ts the original source of energy for the electricity produced at a thermal power station?
