Voltage Shunt Feedback Amplifier MCQ

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• At what condition an inverting amplifier works as an inverter
  ক

  R1 = RF+ RL

  খ

  RF =( R1*Vin)/RL

  গ

  R1 = RF

  ঘ

  R1 = Vo/(Vin*RL)
• Compute the output voltage for the given circuit
  ক

  -2.6v

  খ

  -27.8v

  গ

  -26.7v

  ঘ

  -0.267v
• Which among the following is not a special case of voltage shut feedback amplifier?
  ক

  Voltage follower

  খ

  Current to voltage connector

  গ

  Inverter

  ঘ

  None of the mentioned
• The total voltage offset voltage with feedback (VooT) equation for inverting amplifier is
  ক

  Same as that of non-inverting amplifier

  খ

  k times the non-inverting amplifier, k-> voltage attenuation factor

  গ

  Twice the equation of non-inverting amplifier

  ঘ

  All of the mentioned
• What is the break frequency of the op-amp?
  ক

  fo = Unity Gain Bandwidth /closed loop voltage gain

  খ

  fo = Unity Gain Bandwidth / open loop voltage gain

  গ

  fo = Unity Gain Bandwidth /Gain of feedback circuit

  ঘ

  All of the mentioned
• Specification of op-amp 741c is given below: A=200000; Ri=2MΩ; Ro=75Ω; Supply voltages= ±15v; output voltage swing =±13v; fo=5hz. Compute the value of output resistance, bandwidth and closed loop voltage gain for the circuit shown.
  ক

  ROF=8.6mΩ , fF= 53005hz and AF=-9.36

  খ

  ROF=4.12mΩ , fF= 53005hz and AF=-11.78

  গ

  ROF=7.1mΩ , fF = 53005hz and AF=-16.95

  ঘ

  ROF=1.9mΩ , fF= 53005hz and AF=-10
• Compute RIF for an inverting amplifier with feedback, where the value of input resistance of op-amp is 4.7kΩ.
  ক

  4.7kΩ

  খ

  9.4kΩ

  গ

  2.35kΩ

  ঘ

  Data given is insufficient
• The inverting input inverting of the voltage shunt feedback resistor is a commonly named as
  ক

  Terminal ground

  খ

  Virtual ground

  গ

  Virtual input

  ঘ

  Resistive input
• Voltage shunt feedback amplifiers are also called as
  ক

  Non-inverting amplifier with feedback

  খ

  Non-inverting amplifier without feedback

  গ

  Inverting amplifier with feedback

  ঘ

  Inverting amplifier without feedback
• Write the formula for closed loop voltage gain of inverting amplifier with feedback using open loop voltage gain and gain of feedback circuit.
  ক

  AF= A/(1+AB)

  খ

  AF= -A/(1+AB)

  গ

  AF= -B/(1+AB)

  ঘ

  None of the mentioned
• The value of feedback resistor and resistor connected in series with the input signal source are equal to 10kΩ and 3.3kΩ. Calculate the closed loop voltage gain?
  ক

  -6.7

  খ

  -33

  গ

  -13.3

  ঘ

  -3.33
• Voltage shunt feedback amplifier forms
  ক

  A negative feedback

  খ

  A positive feedback

  গ

  Both positive and negative

  ঘ

  None of the mentioned