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Electronics - Basic Op-Amp Circuits

Exercise : Basic Op-Amp Circuits - Filling the Blanks
6.
Above the critical frequency (fc) of a low-pass filter, the output voltage gain _______.
does not change
doubles for every 1 kHz increase in frequency
increases
decreases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the Acl _______.
reduced, equals one
reduced, is less than one
increased, is more than one
increased, is much greater than one
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.

The given circuit is a two-pole, active ______ filter.

high-pass
low-pass
band-pass
band-stop
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The ______________ input makes the summing amplifier circuit possible.
virtual ground at the noninverting
virtual ground at the inverting
low-voltage
high-voltage
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.

The critical frequency for the active filter in the given circuit is approximately _______.

20.1 kHz
89.3 kHz
14.2 kHz
179 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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