Exercise: Fet Amplifiers

Questions for: Fet Amplifiers

Refer to this figure. Find the value of VD.

A:
20 V
B:
11 V
C:
10 V
D:
9 V
Answer: D
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Refer to this figure. If R6 opened, the signal at the drain of Q1 would

A:
increase.
B:
decrease.
C:
remain the same.
D:
distort.
Answer: C
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A common-source amplifier is similar in configuration to which BJT amplifier?
A:
common-base
B:
common-collector
C:
common-emitter
D:
emitter-follower
Answer: C
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The theoretical efficiency of a class D amplifier is
A:
75%.
B:
85%.
C:
90%.
D:
100%.
Answer: D
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A common-gate amplifier is similar in configuration to which BJT amplifier?
A:
common-emitter
B:
common-collector
C:
common-base
D:
emitter-follower
Answer: C
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