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प्रश्न
State the energy transformation on the following:
Electricity is obtained from wind energy.
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उत्तर
The Kinetic energy changes into electricity.
संबंधित प्रश्न
Define calorific value of a fuel.
A bucket full of water .is on the first floor of your house and another identical bucket with same quantity of water is kept on the second floor. Which of the two has greater potential energy ?
A boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A compressed spring
Why using wood as fuel is not advisable although wood is a renewable source of energy?
Give three examples of bodies possessing kinetic energy.
What kind of energy is possessed in a situation when?
Water stored in dams.
State the energy changes which take place when:
A battery lighting up a bulb.
Give one example when:
Electric energy changes to mechanical energy.
For the same kinetic energy of a body, what should be the change in its velocity if its mass is increased nine times?
