JAMB 1980
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) = (1200/1000) x 6
= 7.2 kwH
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