Advertisements
Advertisements
प्रश्न
Name the device or machine which convert :
Electrical energy into sound energy.
उत्तर
A speaker in radio and television converts electrical energy into sound energy.
APPEARS IN
संबंधित प्रश्न
A ball is placed on a compressed spring. What form of energy does the spring possess? On releasing the spring, the ball flies away. Give a reason.
Is energy a vector quantity?
What kind of energy is possessed by the following?
A stone kept on roof-top _______________
Give two examples where a body possesses both, kinetic energy as well as potential energy.
What are the various forms of energy?
The hanging bob of a simple pendulum is displaced to one extreme position B and then released. It swings towards centre position A and then to the other extreme position C. In which position does the bob have :
(i) maximum potential energy?
(ii) maximum kinetic energy?
Name the energy transfers which occur when :
an electric ball rings
Name the energy transfers which occur when :
someone speaks into a microphone
Name the energy transfers which occur when : a torch is on
Which one of the following is not the unit of energy?
