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प्रश्न
State the energy changes in the following case while in use:
loudspeaker
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उत्तर
Electrical energy into sound energy.
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संबंधित प्रश्न
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State the energy changes in the following case while in use:
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State the energy changes in the following case while in use:
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(a) How much work is done by the men in lifting the box?
(b) How much work do they do in just holding it?
(c) Why do they get tired while holding it? (g = 10 m s–2)
