Op Amp MCQs Part 3

Electrical Engineering MCQs on Op Amp – Operational Amplifier MCQs

For an OP-amp with negative feedback, the output is

For an OP-amp with negative feedback, the output is:

  1. Equal to the input
  2. Fed back to the inverting input
  3. Fed back to the noninverting input
  4. Increased

Correct answer: 2. Fed back to the inverting input

Hysteresis is desirable in Schmitt-trigger since

Hysteresis is desirable in Schmitt-trigger since

  1. Devices in the circuit should be allowed time for saturation and desaturation
  2. Effects of temperature would be compensated
  3. Energy is to be stored/discharged in parasitic capacitances
  4. It would prevent noise from causing false triggering

Correct answer: 1. Devices in the circuit should be allowed time for saturation and desaturation

The two input terminals of an OpAmp are labeled as

The two input terminals of an OpAmp are labeled as

  1. Differential and non differential terminals
  2. High and low terminals
  3. Inverting and non-inverting terminals
  4. Positive and negative terminals

Correct answer: 1. Inverting and non-inverting terminals

The amplifier used in digital to analog converter is

The amplifier used in digital to analog converter is:

  1. Difference amplifier
  2. Non inverter
  3. Summer
  4. Voltage follower

Correct answer: 3. Summer

When a number of stages are connected in parallel, the overall gain is the product of the individual stage gains

When a number of stages are connected in parallel, the overall gain is the product of the individual stage gains

  1. True
  2. False

Correct answer: 2. False

Leave a Reply