The water heating rod draws 10 A current when connected to certain power source. The resistance of rod is 12 Ω. The source voltage is:
Which method can be used for absolute measurement of resistances ?
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What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h ?
The potential difference of a circuit is constant. If the resistance of a circuit is doubled, then its current will become;
146 videos|358 docs|249 tests
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146 videos|358 docs|249 tests
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