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Electronics - Operational Amplifiers

Exercise : Operational Amplifiers - General Questions
36.
If an op-amp has one input grounded and the other input has a signal feed to it, then it is operating as what?
Common-mode
Single-ended
Double-ended
Noninverting mode
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
If the feedback/input resistor ratio of a feedback amplifier is 4.6 with 1.7 V applied to the noninverting input, what is the output voltage value?
7.82 V
saturation
cutoff
9.52 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
The Schmitt trigger is a two-state device that is used for:
pulse shaping
peak detection
input noise rejection
filtering
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
When a capacitor is used in place of a resistor in an op-amp network, its placement determines:
open- or closed-loop gain
integration or differentiation
saturation or cutoff
addition or subtraction
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.

mcq18_1012.gif

What value of input resistance is needed in the given circuit to produce the given output voltage?

50 omega.gif
4 komega.gif
4.08 komega.gif
5 komega.gif
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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