While performing an experiment to determine the gain for an ideal oper – McqOptions

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1.	While performing an experiment to determine the gain for an ideal operational amplifier having finite gain, a student mistakenly used the equation 1 + R2/R1 where R2 is the feedback resistance. What is the percentage error in his result? Given A is the finite voltage gain of the ideal amplifier used.
A.	(R2/R1)/(A+ R2/R1) X 100%
B.	(1+R2/R1)/(A+R2/R1) X 100%
C.	(1+R2/R1)/(A+1+R2/R1) X 100%
D.	(R2/R1)/(A+1+R2/R1) X 100%
Answer» D.

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