The ratio of the RMS amplitude of the higher order harmonic frequencies to the RMS amplitude of the fundamental frequency is commonly called __________(a) Total harmonic power(b) Total amplitude distortion(c) Total frequency distortion(d) Total harmonic distortionI have been asked this question in a job interview.Origin of the question is Distortion in Amplifier topic in division Power Amplifier of Analog Circuits

The ratio of the RMS amplitude of the higher order harmonic frequencie

1.	The ratio of the RMS amplitude of the higher order harmonic frequencies to the RMS amplitude of the fundamental frequency is commonly called __________(a) Total harmonic power(b) Total amplitude distortion(c) Total frequency distortion(d) Total harmonic distortionI have been asked this question in a job interview.Origin of the question is Distortion in Amplifier topic in division Power Amplifier of Analog Circuits
Answer» The correct ANSWER is (d) TOTAL HARMONIC distortion To explain: THD is the ratio of RMS amplitude of higher order harmonic frequencies to the RMS amplitude of the fundamental FREQUENCY. THD is expressed in PERCENTAGE.

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