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प्रश्न
Give one example when:
Electric energy changes to mechanical energy.
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उत्तर
In an electric motor, electric energy changes to mechanical energy.
संबंधित प्रश्न
Name the type of energy (kinetic or potential) possessed by the following:
A stretched rubber band.
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).
What kind of energy is possessed in a situation when?
A stone lying on the top of roof.
What kind of energy is possessed in a situation when?
A shooting arrow.
State the energy changes which take place when:
A car moves up a hill.
State the energy changes which take place when:
Photographic film is exposed to sunlight.
Give one example when:
Electrical energy to heat energy.
Use your brain power!
How do we save fuel by using public transport?
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A moving bus
