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प्रश्न
Give one example when:
Potential energy changes to electric energy.
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उत्तर
The potential energy of stored water in dams, changes to electric energy in generators.
संबंधित प्रश्न
Fill in the blank
An object falling freely from the roof of a multistorey building has ________ and _________ energy when halfway down the building.
State the changes in form of energy while producing hydro electricity.
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
A stretched wire
How much hydroelectric power is generated in India?
Name two examples in which the mechanical energy of a system remains constant.
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 two groups in which various sources of energy are classified?
What is meant by energy?
Nuclear fission is
