A 120 kilowatt light bulb uses about 0.1 kilowatt of electricity per hour if electricity cost $0.20 per kilowatt-hour how much does it cost to have the bulb on for an hour

A 120 kilowatt light bulb uses about 0.1 kilowatt of electricity per hour if electricity cost $0.20 per kilowatt-hour how much does it cost to have the bulb on for an hour

asked Nov 18, 2019 109k views

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