Electricity and Magnetism

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Cost to Operate an Air Conditioner


You decide to do an energy audit to determine how much it costs to power your home electronics. You try to determine the cost of running your air conditioner on a typical summer day, but the label indicating the power rating of the AC is not legible.

You can​ determine that the AC draws about 12 A of current. Additionally, you know your household air conditioner runs on a 220 Volt outlet and is on an average of 6 hours per day during the summer. According to your electric bill, you are charge 12 cents per kWh (kilowatt-hour).