A standard computer has a power supply of 550 W, and many people just leave their computer on all the time. Calculate the amount of money it costs to run a 550 W computer for 24 h, if electricity costs 7.5¢/kWh.

A standard computer has a power supply of 550 W, and many people just leave their computer on all the time. Calculate the amount of money it costs to run a 550 W computer for 24 h, if electricity costs 7.5¢/kWh.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 33PE: What is the cost of operating a 3.00-W electric clock for a year if the cost of electricity is...

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.

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A standard computer has a power supply of 550 W, and many people just leave their computer on all the
time. Calculate the amount of money it costs to run a 550 W computer for 24 h, if electricity costs 7.5¢/kWh.

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