v- feedback voltage
v. - difference input voltage
An op-amp always amplifies the differen
is equal to the input voltage v. minus
always opposes the input voltage (or is
the feedback is said to negative.
Returning now to the analysis of the ve
performed by computing closed-loop
Closed-loop Voltage Gain : As defin
A
V
However, from equation,
V
= A
Referring to Figure 1, we see that
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