(a) Given below are the electrical power requirements for five household appliances. Determine the number of kilowatt-hours of electrical energy consumed if all these appliances are running simultaneously for two hours in a house.
solid state colour TV: 145 W
automatic washing machine: 512 W
furnace fan: 500 W
clock: 2 W
humidifier: 177 W
(b) If the average residential cost of electricity is 12 cents per kilowatt-hour, what would be the cost (to the nearest cent) for the energy calculated in (a)?
a) The number of kilowatt-hours of electrical energy consumed if all these appliances are running simultaneously for two hours in a house = (145 + 512 + 500 + 2 + 177)*2 = 1336*2 = 2672 kilowatt-hour
b) the cost (to the nearest cent) for the energy calculated in (a) = 2672*12 cents = 32064 cents
(a) Given below are the electrical power requirements for five household appliances. Determine the number of...
Need help with this please Lab 14 Electricity Bill Worksheet Background knowledge. The power of an electrical appliance is measured in watt (W). One watt is a measure of the energy used up in one second. The unit used for calculating power consumption is the kilowatt-hour (kWh). In order to calculate power consumed by an electrical appliance, we first convert the power to kilowatt (kW). For example, 800 W=0.8 kW, 2000 W = 2.0 kW and so on. One unit...
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