An electric heater of 1000 W is used for two hours in a day? What is the cost of using it for a month of 28 days, if one unit costs 3.00 rupees? -Physics 9th

An electric heater of 1000 W is used for two hours in a day? What is the cost of using it for a month of 28 days, if one unit costs 3.00 rupees? -Physics 9th
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energy consumed by heater of 1000W for 2h in one day=1000/1000×2 =2units number of units=W×h×day/1000 energy consumed by heater in 28 day 2×28=56units cost of 1unit =RS 3 cost of 56unit=3×56=RS 168
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