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प्रश्न
State the energy changes in the following while in use An electric bulb.
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उत्तर
An electric bulb - Electrical energy to light energy
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संबंधित प्रश्न
State the energy changes in the following case while in use:
An electric iron
State the energy changes in the following while in use An electric oven.
Fill in the blank
Green plants convert _________ energy into chemical energy.
State the energy changes that occur in the following :
The unwinding of a watch spring.
State the energy changes that occur in the following :
Burning coal while operating a steam engine.
Explain conservation of energy.
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(a) How much work is done by the men in lifting the box?
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(c) Why do they get tired while holding it? (g = 10 m s–2)
