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State one important advantage and disadvantage each of using nuclear energy for producing electricity.
Fill in the blank
The energy possessed by a body due to its motion is called ______ energy.
Name the type of energy (kinetic or potential) possessed by the following:
A bullet fired from a gun.
State the energy changes in the following case while in use:
a ceiling fan
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
Select the renewable and non-renewable sources of energy from the following:
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What do you understand by the potential energy of the body?
How much hydro-electric power is generated in India?
State the energy changes which take place when:
A body released from rest from the top of a building.
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]
