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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
Name the process used for producing electricity using nuclear energy.
State two uses of solar cells.
A hydroelectric power station takes its water from a lake whose water level is 50 m above the turbine. Assuming an overall efficiency of 40%, calculate the mass of water which must flow through the turbine each second to produce power output of 1 MW. (Take g = 10 m s−2).
Name the energy changes for the following:
bicycle brakes
What kind of energy is possessed in a situation when?
A shooting arrow.
State two advantages and two disadvantages of using hydro-energy for producing electricity.
State two advantages and disadvantages of using nuclear energy for producing electricity.
State the energy changes which take place when:
A toy car spring is wound and car is made to run on level floor.
Give one example when:
Kinetic energy to potential energy.
Unit of calorific value of a substance is ____________.
