8.7 CIRCUIT THEOREMS IN SINUSOIDAL STEADY-STATE ANALYSIS
Sinusoidal steady-state, as we have defined, is a concept relevant only to a linear dynamic
circuit. A non-linear circuit excited by a sinusoidal waveform may reach a steady-state; but
that steady-state will not be a sinusoidal steady-state since the response of a non-linear circuit
to a sinusoidal waveform may contain a distorted and non-sinusoidal content. Phasors and
phasor equivalent circuits are applicable only if all response variables are sinusoidal wave-
forms with a frequency equal to that of the input, i.e., only if the dynamic circuit is linear.
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8.6SINUSOIDAL STEADY-STATE RESPONSE ...
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