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प्रश्न
Give one example when:
Electrical energy to heat energy.
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उत्तर
Electric heater while in use.
संबंधित प्रश्न
What is the source of heat contained in geothermal energy?
Fill in the blank
An object falling freely from the roof of a multistorey building has ________ and _________ energy when halfway down the building.
Name the type of energy (kinetic or potential) possessed by the following:
A stone at rest on the top of a building.
What is a solar cell?
State the energy changes which take place in Electricity is obtained from solar energy.
State the energy changes which take place when:
Water stored in dams rotates turbine connected to a dynamo.
Give one example when:
Electric energy changes to potential energy.
In a hydroelectric power station, 1000 kg of water is allowed to drop through a height of 100 m in 1 sec. If the conversion of potential energy to electric energy is 60%. Calculate the power output. [Take: g = 10m/sec2]
Energy from various sources is considered to have been derived from the sun. Do you agree? Justify your answer.
