Intermodulation distortion is caused by __________(a) Presence of harmonic components in signal(b) Non- linearity of biasing circuit(c) Non-linearity of amplifier(d) High frequency signalThe question was asked during an interview.Query is from Distortion in Amplifier topic in division Power Amplifier of Analog Circuits

Intermodulation distortion is caused by __________(a) Presence of harm

1.	Intermodulation distortion is caused by __________(a) Presence of harmonic components in signal(b) Non- linearity of biasing circuit(c) Non-linearity of amplifier(d) High frequency signalThe question was asked during an interview.Query is from Distortion in Amplifier topic in division Power Amplifier of Analog Circuits
Answer» Right answer is (c) Non-linearity of amplifier The explanation: Intermodulation is the AMPLITUDE modulation of signals containing two or more frequencies, and this is CAUSED by non-linearity of the system. Intermodulation of frequencies will form additional unwanted components at MULTIPLE frequencies. It can also give RISE to spurious emissions in radio TRANSMISSION, often in form of sidebands.

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