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Chapter 31c-32a - Power in(harmonic AC circuits The power...

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Power in (harmonic) AC circuits The instantaneous power is still, a) it determines the energetic (and therefore monetary) cost of running the circuit, b) it determines the efficiency with which the circuit uses that energy (a simple change might improve this), and, c) it determines the heat that will be generated by the circuit (which might require cooling lest the circuit melt). p = iv (lower case time varying quantities) The power is important because:
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