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प्रश्न
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
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उत्तर
The chemical energy of cell changes to electric energy. The electric energy first changes to heat and finally to light energy.
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संबंधित प्रश्न
Can a body possess energy even when it is not in motion ? Explain your answer with an example.
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State the energy changes which take place when:
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State the energy changes which take place when:
Burning of coal.
Give one example when:
Potential energy changes to electric energy.
Give one example when:
Electric energy changes to potential energy.
Give one example when:
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