Exercise: Bjt Amplifiers

Questions for: Bjt Amplifiers

Refer to this figure. Calculate the value of VB.

A:
5 V
B:
3.7 V
C:
20 V
D:
3 V
Answer: B
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The ________ model fails to account for the output impedance level of the device and the feedback effect from output to input.
A:
hybrid equivalent
B:
re
C:
D:
Thevenin
Answer: B
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An emitter-follower is also known as a
A:
common-emitter amplifier.
B:
common-base amplifier.
C:
common-collector amplifier.
D:
Darlington pair.
Answer: C
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What is the most important r parameter for amplifier analysis?
A:
rb′
B:
rc′
C:
re′
D:
Answer: C
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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: A
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