A stand-by generator is connected to fifteen 40 W lamps and musician’s 600 W amplifying system. How much energy is used if the generator runs for 6 hours?
-
A.
3.84k Wh -
B.
7.20k Wh -
C.
8.40k Wh -
D.
12.00k Wh -
E.
14.56k Wh
Correct Answer: Option B
Explanation
Total power = (15 x 40) + 600
= 1200 watts
Energy(kWh) = (frac{1200}{1000}) x 6
= 7.2 kwH