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प्रश्न
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
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उत्तर
The chemical energy of cell changes to electric energy. The electric energy first changes to heat and finally to light energy.
संबंधित प्रश्न
State the energy change in the following device while in use:
A loudspeaker
Select the correct alternatives
A ball rolling on the ground possesses
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
A stretched wire
State the energy changes which take place in Electricity is obtained from solar energy.
What is the main energy transformation that occur in:
Charging of a battery.
State the energy changes which take place when:
Water freezes in the freezing chamber of a fridge.
A body of mass m falls from a height h1 to a height h2, above the ground (h1 > h2). What is the loss of potential energy?
Energy from various sources is considered to have been derived from the sun. Do you agree? Justify your answer.
Nuclear fission is
