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प्रश्न
State the energy transformation on the following:
Electricity obtained from hydro energy.
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उत्तर
The Kinetic energy changes into electricity.
संबंधित प्रश्न
Define calorific value of a fuel.
Write true or false of the following statement.
There is always some loss of energy in conversion from one form of energy to another form, so the total energy is not conserved.
State the energy changes in the following case while in use:
a ceiling fan
State two disadvantages of producing electricity from solar energy.
What do you understand by the potential energy of the body?
Is it possible that a body may possess energy even when it is not in motion?
State the energy changes which take place in Electricity is obtained from solar energy.
Give one example when:
Heat energy changes to kinetic energy.
Give one example when:
Sound energy changes to electric energy.
Two bodies, A and B of equal mass are kept at heights 20 m and 30 m respectively. Calculate the ratio of their potential energies.
