Exercise: Basic Op Amp Circuits

Questions for: Basic Op Amp Circuits

A Wien-bridge oscillator uses _________.
A:
positive feedback
B:
negative feedback
C:
both types of feedback
D:
an LC tank circuit
Answer: C
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A mathematical operation that determines the rate of change of a curve is called __________.
A:
differentiation
B:
integration
C:
curve averaging
D:
linear regression
Answer: A
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The critical frequency for the active filter in the given circuit is approximately _______.

A:
20.1 kHz
B:
89.3 kHz
C:
14.2 kHz
D:
179 kHz
Answer: A
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The ______________ input makes the summing amplifier circuit possible.
A:
virtual ground at the noninverting
B:
virtual ground at the inverting
C:
low-voltage
D:
high-voltage
Answer: B
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The given circuit is a two-pole, active ______ filter.

A:
high-pass
B:
low-pass
C:
band-pass
D:
band-stop
Answer: B
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