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प्रश्न
Give one example when:
Electric energy changes to sound energy.
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उत्तर
When a loudspeaker works, the electric energy changes to sound energy.
संबंधित प्रश्न
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
Select the correct alternatives
The energy stored in an electric cell is
Give one example to show the conversion of potential energy to kinetic energy when put in use.
Differentiate between the potential energy (U) and the kinetic energy (K).
Name the form of mechanical energy, which is put to use.
Write the type of energy possessed in the following case:
A wound-up spring
Name a device in which solar energy is converted into electricity state its two uses.
State the energy changes which take place when:
During electrolysis.
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]
The solar cooker is an application of the ______ energy of the sun, while solar cells, solar lamps are applications of the ______ energy of the sun.
