THD is a measure of ____________(a) Amount of harmonic content present in a signal(b) Amount of output power(c) Total amount of distortion(d) Total amount of amplitude distortionI have been asked this question in an interview for internship.My question comes from Distortion in Amplifier topic in section Power Amplifier of Analog Circuits

THD is a measure of ____________(a) Amount of harmonic content present

1.	THD is a measure of ____________(a) Amount of harmonic content present in a signal(b) Amount of output power(c) Total amount of distortion(d) Total amount of amplitude distortionI have been asked this question in an interview for internship.My question comes from Distortion in Amplifier topic in section Power Amplifier of Analog Circuits
Answer» Right answer is (a) AMOUNT of harmonic content present in a signal To explain I would SAY: THD (Total Harmonic Distortion) is a measurement of the harmonic distortion present in a signal. It is the RATIO of sum of power of all harmonic components to the power of the FUNDAMENTAL FREQUENCY of the signal.

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