The current in a 120-v reading lamp is 25 a if the cost of


The current in a 120-V reading lamp is 2.5 A. If the cost of electrical energy is $0.090 per kilowatt-hour, how much does it cost to operate the light for an hour? (Do not round to the nearest cent.)

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Physics: The current in a 120-v reading lamp is 25 a if the cost of
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