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is equivalent to a pure resistance. (E5C12) '''The coordinate system that is often used to display the resistive, inductive, and/or capacitive reactance components of an impedance is rectangular coordinates.''' (E5C13) The coordinate system that is often used to display the phase angle of a circuit containing resistance, inductive and/or capacitive reactance is polar coordinates. (E5C14)
If an oscilloscope were connected to the body, the phase angle appears as a small delay between the voltage waveform and the current waveform. The period of each wave at 50 kilohertz is 20 microseconds. If, for example, the time delay is ten percent of the period, then the time delay is 2 microseconds.