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uzair_ha91
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I know this is a school type question, but it's an example problem whose solution is already given and it's the solution I am unable to understand...
Find the current gain of the following circuit.
http://img17.imageshack.us/img17/2389/opamp.png
Solution: As the input signal Vi is connected to non-inverting input, so the op-amp acts as a non-inverting amplifier. We have:
R1=[tex]\infty[/tex] (infinite) and R2=0
Gain=1+R2/R1=1
My first question is that as you can see in the figure, both inverting input and the noninverting input are connected to the output circuit, how does this affect things?
Second, please explain this: R1=[tex]\infty[/tex] (infinite) and R2=0
Find the current gain of the following circuit.
http://img17.imageshack.us/img17/2389/opamp.png
Solution: As the input signal Vi is connected to non-inverting input, so the op-amp acts as a non-inverting amplifier. We have:
R1=[tex]\infty[/tex] (infinite) and R2=0
Gain=1+R2/R1=1
My first question is that as you can see in the figure, both inverting input and the noninverting input are connected to the output circuit, how does this affect things?
Second, please explain this: R1=[tex]\infty[/tex] (infinite) and R2=0
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