One of the DC imperfections of the amplifiers are dc offset voltage which is(a) Existence of output signal even when the common mode signal is zero(b) Existence of common mode signal causing zero output signal(c) Existence of output signal even when the differential signal is zero(d) Existence of differential signal causing zero output signalI got this question in an internship interview.I want to ask this question from DC Imperfections in Operational Amplifiers topic in portion Operational Amplifiers of Electronic Devices & Circuits

One of the DC imperfections of the amplifiers are dc offset voltage wh

1.	One of the DC imperfections of the amplifiers are dc offset voltage which is(a) Existence of output signal even when the common mode signal is zero(b) Existence of common mode signal causing zero output signal(c) Existence of output signal even when the differential signal is zero(d) Existence of differential signal causing zero output signalI got this question in an internship interview.I want to ask this question from DC Imperfections in Operational Amplifiers topic in portion Operational Amplifiers of Electronic Devices & Circuits
Answer» Right option is (c) EXISTENCE of output SIGNAL EVEN when the differential signal is zero The BEST explanation: DC offset voltage is existence of output signal even when the differential signal is zero.

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