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Operational Amplifiers - Technical MCQs

Q1:

Op-amps used as high- and low-pass filter circuits employ which configuration?

A noninverting

B comparator

C open-loop

D inverting

ANS:D - inverting

Low pass filter is same as integrator and high pass filter is same as differentiator so the integrator is similar to the inverting amplifier with the exception that resistor RF is replaced by a capacitor. And The differentiator is similar to the inverting amplifier with the exception that resistor RG is replaced by a capacitor.