1. Determine the output voltage for an op-amp with single break frequency. A. VO ={ jXC /[Ro+(iXC)]} × AVid B. VO = = AVid / [1+ j2πfRoC]. C. VO = AVid /(Ro+j2πfC. D. VO = Vid / [Ro-(j2πfRoC.]. 2. Compute the break frequency of an op-amp, if the output resistance=10kΩ and the capacitor connected to the output =0.1µF. A. 159.2Hz B. 6.28Hz …
1. Open-loop bandwidth of an op-amp extends its bandwidth from A. 0 Hz to fo B. 20dB to fo C. 3dB to fo D. 0.704dB to fo 2. What happens if 741 op-amps are configured as a closed-loop inverting amplifier? A. Gain increases B. Gain roll-off at a rate of 20dB/decade C. No gain …
1. Open-loop bandwidth of an op-amp extends its bandwidth from A. 0 Hz to fo B. 20dB to fo C. 3dB to fo D. 0.704dB to fo 2. What happens if 741 op-amps are configured as a closed-loop inverting amplifier? A. Gain increases B. Gain roll-off at a rate of 20dB/decade C. No gain …
1. Variation in the operating frequency of op-amp causes A. Variation in gain amplifier B. Variation in gain phase angle C. Variation in gain amplitude and its phase angle D. None of the mentioned 2. A graph of the magnitude of the gain versus frequency is called A. Break frequency B. Frequency response plot …
1. Variation in the operating frequency of op-amp causes A. Variation in gain amplifier B. Variation in gain phase angle C. Variation in gain amplitude and its phase angle D. None of the mentioned 2. A graph of the magnitude of the gain versus frequency is called A. Break frequency B. Frequency response plot …
1. When does the op-amp said to operate in a common-mode configuration? A. When the input voltage is equal B. When the input voltage is equal to the output voltage C. When the same voltage is applied to both input terminals of an op-amp D. When different voltage is applied to both input and terminal …
1. When does the op-amp said to operate in a common-mode configuration? A. When the input voltage is equal B. When the input voltage is equal to the output voltage C. When the same voltage is applied to both input terminals of an op-amp D. When different voltage is applied to both input and terminal …
1. The major source of the interference with the desired signal in an electronic system is called A. Error signal B. Interference signal C. Noise signal D. Faulty signal 2. Identify the external noise sources A. Switching of rotating machinery B. Control circuits C. Ignition system D. All of the mentioned 3. Which …
Operational Amplifier Fundamental MCQ 1. What makes the output voltage equal to zero in practical op-amp? A. Input offset voltage B. output offset voltage C. Offset minimizing voltage D. Error voltage 2. What happens due to a mismatch between two input terminals in an op-amp? A. Input offset voltage B. Output offset voltage …
1. Which factor affects the power supply voltages in the amplifier? A. Poor regulation and filtering B. Resistive network connected to an amplifier C. Change in temperature D. All of the mentioned 2. Change in the input bias current does not affect? A. Input offset voltage B. Output offset voltage C. Input offset current …
Effect of Variation in Power Supply Voltage on IC Offset Voltage MCQ Read More »
