Microelectronics MCQ Quiz! Test

10 Questions | Total Attempts: 104

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Microelectronics MCQ Quiz! Test

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Questions and Answers
  • 1. 
    If biasing is not done in an amplifier circuit, it results in ……………
    • A. 

      Increase in the base current

    • B. 

      No amplification

    • C. 

      Increase in collector current

    • D. 

      None of the above

  • 2. 
    The bipolar transistor acts as ............................ when operating in the forward active region.
    • A. 

      Voltage controlled voltage source

    • B. 

      Current controlled voltage source

    • C. 

      Voltage controlled current source

    • D. 

      Current controlled current source

  • 3. 
    In BJT, IC is independent of VCE. (neglect early effect)
    • A. 

      True

    • B. 

      False

  • 4. 
    These circuits reduce to the same equivalent circuit.
    • A. 

      True

    • B. 

      False

  • 5. 
    With zero volts on op-amp inputs, it ideally should have an output:
    • A. 

      Equal to positive supply voltage

    • B. 

      Equal to negative supply voltage

    • C. 

      Equal to zero

    • D. 

      Undefined

  • 6. 
    Voltage follower using op-amp:
    • A. 

      Has a gain of one

    • B. 

      Is non-inverting

    • C. 

      Has no feedback resistor

    • D. 

      Has all of these

  • 7. 
    What is the minimum allowable value of VDD if M1 must not enter the triode region?(neglect early effect)assume μnCox = 200 μA/V2  and VTH = 0.4 V  
    • A. 

      1.6

    • B. 

      1.8

    • C. 

      2.5

    • D. 

      1.1

  • 8. 
    Compute the input resistance
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 9. 
    Compute voltage gain of the circuit shown (include early effect)
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 10. 
    Which one of these circuit has the following characteristics? (assume ideal diodes)
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

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