A 250 watt electric bulb is lighted for 5 hours daily and four 6 watt bulbs are lighted for 4.5 hours daily. Calculate the energy consumed (in kWh) in the month of February.
kWh is exactly what it indicates, kilowatts multiplied by hours. The electric bulb uses 250 W = 0.25 kW times 5 hours = 1.25 kWh daily, the four 6 watt bulbs use 24 W together = 0.024 kW times 4.5 hours = 0.108 kWh daily. Total powerconsumtion for these 5 lights is 1.358 kWh daily.
