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प्रश्न
An electric heater is rated 220 V, 550 W. Calculate the electrical energy consumed in 3 hours?
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उत्तर
Energy consumed in 3 hrs = `(550 xx 3)/1000` = 1.65 kWh
= 1.65 × 3600 = 5940 kJ.
संबंधित प्रश्न
Which one has a higher electrical resistance : a 100 watt bulb or a 60 watt bulb?
How much energy does a 100 W electric bulb transfer in 1 minute?
(a) 100 J
(b) 600 J
(c) 3600 J
(d) 6000 J
State two advantages of filling an inert gas in an evacuated electric filament lamp.
What would happen and why, to an electric bulb when it is connected across a supply of voltage (i) lower (ii) higher than its proper rating?
An electric bulb is marked 100 W, 230 V. What does this mean?
What is the order of current drawn by appliances connected to the ‘light circuit’ of a household?
1 kWh = ______ J.
