A microwave draws 5.0A when it is connected to a 120V outlet. If electrical energy cost $0.090/kwh, what is the cost of running the mircrowave for 6hr
The energy utilized is given by the product of power and time. Power is given by the product of voltage and current. Here the microwave draws a voltage of 5 A from a 120 V outlet. The power drawn is voltage * current
=> 5* 120
=> 600 Watt or 0.6 kW
When the oven is run for 6 hr, it uses 0.6 * 6 = 3.6 Kilowatt hour. Each kWh costs $ 0.09 or 9 cents.
Therefore the cost of energy is 0.09* 3.6 = $ 0.324 or 32.4 cents.
it will cost an estimated 6 dollars and 66 cents