AP Physics C Electricity and Magnetism Quiz
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ELECTRIC CIRCUITS
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A long extension cord is modeled as a R=0.20Ω resistor in series with a load, and the current through the cord is I=8.0A. The cord warms during operation, indicating resistive heating in the wire. Use P=I2R to determine the power lost as heat in the cord. Give your answer in watts (W). How much power is lost in the transmission line?
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