Physics, asked by rubal0125, 2 months ago

An op-amp with positive feedback works as an amplifier. True or false?

Answers

Answered by vaishnaviupadhyay39
0

Answer:

true

Explanation:

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Answered by sohanSL
0

Answer:

True

Explanation:

In a "positive feedback control system," the controller adds the set point and output values together since the feedback is "in-phase" with the input. Positive feedback has the effect of "increasing" the system gain, meaning that the overall gain with positive feedback is greater than the gain without input. However, in electronic and control systems, positive feedback can dramatically increase the system gain, resulting in oscillatory circuit responses as the size of the effective input signal rises. An electronic amplifier based on an operational amplifier is an example of a positive feedback system.

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