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Physics 8 Online
OpenStudy (anonymous):

If the cost of 1kWh electricity is 80 cents, what is the total cost of operating the following electrical appliances for 3 hours. Television 135 W Air conditioner 2.75kW Lamps 100W

OpenStudy (anonymous):

all are operating at the same time?

OpenStudy (kropot72):

Convert the power consumption of the television and the lamps to kW, then add the power consumption of the appliances. 0.135 + 2.75 + 0.1 = 2.985kW The cost in dollars of operating all the appliances for 3 hours is: 2.985 * 3 * 0.8 = $?

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