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Multiple Choice Quiz
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1
A general-purpose op amp has an open-loop voltage gain of
A)1
B)120
C)1000
D)200,000
2
An op amp configured as a voltage follower has a voltage gain of
A)1
B)120
C)1000
D)200,000
3
In a closed-loop op amp configuration, the negative feedback
A)increases gain
B)increases bandwidth
C)decreases bandwidth
D)makes the amplifier circuit more selective
4
What is produced when the internal lag networks of an op amp accumulate to -180°?
A)negative feedback
B)positive feedback
C)stable amplifier
D)degenerative feedback
5
A circuit or device that allows some frequencies to pass through and attenuates other frequencies is a(n)
A)oscillator
B)amplifier
C)rectifier
D)filter





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