BJIt Amplifiers Questions and Answers

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Showing 10 of 46 questions
Q1
Which of the following configurations has the lowest output impedance?
  • A Fixed-bias
  • B Voltage-divider
  • C Emitter-follower
  • D None of the above
Answer: Option C
Q2
Which of the h-parameters corresponds to re in a common-base configuration?
  • A hib
  • B hfb
  • C hrb
  • D hob
Answer: Option A
Q3
Which of the following is referred to as the reverse transfer voltage ratio?
  • A hi
  • B hr
  • C hf
  • D ho
Answer: Option B
Q4
For a common-emitter amplifier, the purpose of swamping is
  • A to minimize gain.
  • B to reduce the effects of r'e
  • C to maximize gain.
  • D no purpose.
Answer: Option B
Q5
What is the typical value of the current gain of a common-base configuration?
  • A Less than 1
  • B Between 1 and 50
  • C Between 100 and 200
  • D Undefined
Answer: Option A
Q6
An emitter-follower is also known as a
  • A common-emitter amplifier.
  • B common-base amplifier.
  • C common-collector amplifier.
  • D Darlington pair.
Answer: Option C
Q7
You have a need to apply an amplifier with a very high power gain. Which of the following would you choose?
  • A common-collector
  • B common-base
  • C common-emitter
  • D emitter-follower
Answer: Option C
Q8
What is the voltage gain of a feedback pair connection?
  • A 1
  • B –1
  • C 100
  • D –100
Answer: Option A
Q9
A common-emitter amplifier has ________ voltage gain, ________ current gain, ________ power gain, and ________ input impedance.
  • A high, low, high, low
  • B high, high, high, low
  • C high, high, high, high
  • D low, low, low, high
Answer: Option B
Q10
The advantage that a Sziklai pair has over a Darlington pair is
  • A higher current gain.
  • B less input voltage is needed to turn it on.
  • C higher input impedance.
  • D higher voltage gain.
Answer: Option B

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