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प्रश्न
Name two electric devices for each where
- heating effect of current is used and
- magnetic effect of current is used.
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उत्तर
- Current heating devices are used room heaters and geysers.
- Cranes and electric bells employ the magnetic influence of current.
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संबंधित प्रश्न
Write Joule's law of heating.
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(a) thin and short
(b) thick and short
(c) low melting point
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