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प्रश्न
What is the energy conversion when an electric current passes through a metallic wire?
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उत्तर
When an electric current passes through a metallic wire, the wire becomes hot and the whole of electric energy is converted into heat energy.
संबंधित प्रश्न
Which quantity has the unit of watt?
The unit for expressing electric power is:
(a) volt
(b) joule
(c) coulomb
(d) watt
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Two lamps, one rated 220 V, 50 W and the other rated 220 V, 100 W, are connected in serieswith mains of 220 V. Explain why does the 50 W lamp consume more power
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Why is heating element wound on a long porcelain rod in a room heater.
State two advantages of filling an inert gas in an evacuated electric filament lamp.
Three 250 W heaters are connected in parallel to a 100 V supply, Calculate total current taken from the supply.
1 kWh = ____________
