Power consumption

The price of electricity is ₱6.50 per kilowatt hour (kWh). How much electricity was consumed if a television with 120 W power consumption ran from 7:30 AM to 12:30 PM? How much will this cost?

Correct answer:

E =  0.6 kWh
x =  3.9 p

Step-by-step explanation:

c=6.50 p/kWh P=120 W t=12.57.5=5 h  Q=P t=120 5=600 Wh  E=Q/1000=600/1000=0.6 kWh
x=c E=6.5 0.6=3.9 p



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