Transcription of AC Power: A Worked Example
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ac power : A Worked ExampleAndrew McHutchonApril 22, 2013 The voltage in a circuit is V= 240 0and the impedance of the circuit at 50Hz is Z= 48 + the following we work through the analysis of this setup, tackling many of the calculations you will be requiredto make in the Cambridge 1A course. A notational note: V, I, and Z, are used to represent complex quantitieswith a magnitude and phase;V,I, andZare used to represent their polar setupWhat does this circuit look like? The truth is we don t know. It could be made up of many different componentswhich combine to give this impedance . The imaginary component of the impedance (called thereactance) ispositive and this implies that the circuit is overallinductiverather than capacitive.
AC Power: A Worked Example Andrew McHutchon April 22, 2013 The voltage in a circuit is V~ = 240\0 and the impedance of the circuit at 50Hz is Z~ = 48 + j36.
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