Question

Calculate the harmonic distortion component for an output signal having a fundamental amplitude of 3 V and a second harmonic amplitude of 0.25 V.

(a) 3.83%

(b) 38.3%

(c) 83.3%

(d) 8.33%

I had been asked this question during a job interview.

Query is from Classification of Output Stages topic in division Differential and Multistage Amplifiers of Electronic Devices & Circuits

Answer 1

Right answer is (d) 8.33%

The explanation: 3 volt is input

0.25 is distortion in input for 3 volt

then (0.25/3)*100 = 8.33%.