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Electronic devices use electrical energy even when they are on standby. Calculate the percent of energy used per day for the following entertainment equipment in the standby mode assuming that they are plugged in all the time.
Device
Standby Power
Power when on
Hours on per day
DVD player
1 W
75 W
4
TV
2 W
100 W
6
Tuner
150 W
A)
0.45%
B)
1.1%
C)
4.8%
D)
5.1%
E)
None of these is correct.
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