A 200 Watt incandescent bulb is on for eight hours a day during the month of April. How much will it cost to operate that bulb for the month if AEP's current rate is $0.10/kWh?

¢4. 8

Explanation:

Power consumed = 200 watt

= 200/1000 = 0.2kw

The bulb lights for 8 hrs a day for the month of april,

April has 30 days, therefore total hrs = 8 x 30 = 240 hrs

Energy usage = 0.2 x 240 = 48 kWh

At the rate of ¢0.10/kWh, total cost will be;

0.1 x 48 = ¢4.8

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