40 TOP BASIC OP-AMP CIRCUITS Online Test – Questions and Answers Posted on April 16, 2024April 16, 2024 by engineerLeave a comment 1. A two-pole high-pass active filter would have a roll-off rate of –40 dB/decade 40 dB/decade –20 dB/decade 20 dB/decade 2. The ramp voltage at the output of an op-amp integrator increases or decreases exponentially increases or decreases at a linear rate is constant is always increasing and never decreasing 3. A digital-to-analog converter is an application of the voltage-to-current converter scaling adder noninverting amplifier adjustable bandwidth circuit 4. A basic series regulator has a reference voltage a load an error detector both an error detector and a reference voltage 5. In an averaging amplifier, the input resistances are equal to the feedback resistance less than the feedback resistance greater than the feedback resistance unequal 6. A zero-level detector is a comparator with a sine-wave output peak detector comparator with a trip point referenced to zero limiter 7. The center frequency of a band-pass filter is always equal to the –3 dB frequency bandwidth divided by Q bandwidth geometric average of the critical frequencies 8. A triangular-wave oscillator can consist of an op-amp comparator, followed by a(n) differentiator integrator amplifier multivibrator 9. A comparator is an example of a(n) active filter current source nonlinear circuit linear circuit 10. If the value of resistor Rf in an averaging amplifier circuit is equal to the value of one input resistor divided by the number of inputs, the output will be equal to the average of the individual inputs the inverted sum of the individual inputs the sum of the individual inputs the inverted average of the individual inputs Loading … Question 1 of 10