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प्रश्न
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in the unwinding of a watch spring.
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उत्तर
The hands of a watch use the elastic potential energy saved during the unwinding of a clock. The potential energy of a wound-up spring converts into kinetic 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 that occur in the following :
Lighting of a torch bulb.
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