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
|
1 W
|
150 W
|
4
|
|
A)
|
0.45%
|
|
B)
|
1.1%
|
|
C)
|
4.8%
|
|
D)
|
5.1%
|
|
E)
|
None of these is correct.
|