An electric heated of power 2000w and 1000w electric iron of power are used for 4h daily when connected to 220v mains supply total number of units consumed ler day is calculated as
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Electricity is usually measured in kilowatt hours (kWh). One kilowatt hour is 3.6 million joules. So your heater is using two kilowatt hours every hour. If your charge is 12 rupees per kWh, you spend 24 rupees per hour to run your heater.
This means that if a 1,500-watt heater ran 24-hours at a rate of 10.5 cents (CEC's rate) a kilowatt-hour, the cost would be $3.78 a day (1,500 x 24 ÷ 1,000 x $0.105). For a month that would amount to $113.40 added to the electric bill of the average member.
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n= watt * hour/1000 =
(2000 + 1000)*4/1000 = 12 units
Explanation:
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