2. Take the cost of 1 kWh to be Rs7.
What does the electrical energy cost to
run:
(a) a 3 kW immersion heater for 20 m
(b) a 200 W light bulb for 24 hours
(C) a 2 kW fire for 4 hours a day for 3
months
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Hi baps kya kar rahe ho tumahra nam kya hai beta
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