Electronic Devices & Circuits - Electronic Engineering (MCQ) questions & answers for Q. 11696

Q.  Which among the following parameter/s increase/s due to positive feedback?

A. Input voltage
B. Output Voltage
C. Noise
D. Voltage Gain
- Published on 23 Sep 15

a. A & B
b. Only C
c. B & D
d. A, B, C & D

ANSWER: A, B, C & D

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    Discussion

  • Satyawati   -Posted on 30 Sep 15
    As far as positive feedback is considered, it has several consequences over the different parameters. Several parameters like input voltage, output voltage, noise and voltage gain have a direct relationship with the positive feedback. This means that these parameters increases due to increase in the positive feedback.

    On the contrary, these parameters decreases due to the negative feedback. Even the stability becomes poorer as the positive feedback increases whereas the stability becomes better as the negative feedback increases.

    Hence, several parameters exhibit different consequences depending on the type of feedback.

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