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When connected to a standard household voltage of 120V, a new Wii U draws 1.5A of current. How many joules per second is the Wii U using?

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Correct Answer: D. 180 J/s
From P = IV, we get P = (1.5A)(120V) = 180 W = 180 J/s. One watt is equal to 1 joule per second. Be sure you understand units in physics!
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