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प्रश्न
What is the meaning of the symbol kWh? Which quantity does it represent?
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उत्तर
The symbol KWh stands for kilowatt-hour. It is the commercial unit of electrical energy.
संबंधित प्रश्न
Name the commercial unit of electric energy.
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1k Wh = ______J
A bulb with rating 250 V, 100 W is connected to a power supply of 220 V situated 10 m away using a copper wire of area of cross-section 5 mm2. How much power will be consumed by the connecting wires? Resistivity of copper = 1.7 × 10−8 Ωm
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An electric lamp A of 40 W and another electric lamp B of 100 W are connected to 220 V supply. Calculate the ratio of their filament resistances?
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