Advertisements
Advertisements
Question
Name a device in which solar energy is converted into electricity state its two uses.
Advertisements
Solution
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.
RELATED QUESTIONS
Name the type of energy (kinetic or potential) possessed by the following:
A compressed spring.
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is just in the middle .
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A moving bus
What is meant by the renewable and non-renewable sources of energy? Distinguish between them giving two examples of weach.
How is the solar energy used to generate electricity in a solar power plant?
State two advantages of using nuclear energy for producing electricity.
State the energy changes which take place when:
A battery lighting up a bulb.
A moving body weighing 400 N possesses 500 J of kinetic energy. Calculate the velocity with which the body is moving. (g = 10 ms2)
For the same kinetic energy of a body, what should be the change in its velocity if its mass is increased nine times?
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A moving cricket ball
