'Problem 3 A 400-W computer (computer plus monitor) is turned on 8.0 hours per day. If electricity costs 10 cents per E kWh; how much does it cost to run the computer annually?'
Added by Douglas T.
Step 1
The computer uses 400 W, and it's turned on for 8 hours a day. So, the total energy consumption in a day is 400 W * 8 hours = 3200 Wh = 3.2 kWh. Show more…
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