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- Subject
- OP-AMP Circuitselectrical-engineering-mcqs › op-amp-circuits
- Published
- 17 Dec 2018
- Last updated
- 28 May 2026
Explanation
Given the input resistance (Ri) is 10kΩ and the feedback resistance (Rf) is 100kΩ, the input impedance is approximately the sum of these two resistances, resulting in about 110kΩ. The load resistance (RL) does not affect the input impedance in this configuration.
More OP-AMP Circuits MCQs
Practice related questions from the same subject.
- 1.An operational amplifier has a slew rate of 5 V/μs. What is the maximum peak output voltage of a sine wave at a frequency of 1 MHz that the amplifier can produce without distortion?
- 2.Given a 741 operational amplifier with a gain-bandwidth product of 1 MHz, what is the -3 dB bandwidth of a non-inverting amplifier configured with this op-amp and a voltage gain of 20 dB?
- 3.Why is a differential amplifier consistently employed at the input stage of operational amplifiers?
- 4.Consider the ideal op-amp circuit shown in the figure. If the input voltage Vi is a triangular waveform, what will be the shape of the output voltage V0?
- 5.If a differential amplifier has a differential gain of 20,000 and a Common Mode Rejection Ratio (CMRR) of 80 dB, what is the value of the common mode gain?
- 6.Which type of amplifier is commonly utilized in a digital-to-analog converter?
- 7.What type of output does an op-amp integrator produce when a step input is applied?
- 8.Which statement accurately describes an ideal operational amplifier?
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