Advertisements
Advertisements
प्रश्न
State the energy change in the following device while in use:
A loudspeaker
Advertisements
उत्तर
Electric energy to sound.
APPEARS IN
संबंधित प्रश्न
Write an expression for the potential energy of a body of mass m placed at a height h above the earth's surface. State the assumptions made, if any.
Name five renewable sources of energy.
State two disadvantages of producing electricity from solar energy.
State the energy transformation on the following:
Electricity is obtained from wind energy.
State the energy transformation on the following:
Electricity is obtained from hydro energy.
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
Give one example when:
Kinetic energy to potential energy.
Show that in case of a body falling freely under gravity, total mechanical energy remains conserved (neglect air resistance).
For the same kinetic energy of a body, what should be the change in its velocity if its mass is increased nine times?
Find out the types of energy from the following puzzle.
