Discussion :: Operational Amplifiers - General Questions (Q.No.7)
A noninverting closed-loop op-amp circuit generally has a gain factor:
Answer: Option B
No answer description available for this question.
|Vatsala Sharma said: (May 20, 2011)|
|The gain of non inverting amplifier exceeds the gain of inverting amplifier by unity.|
|Pushp Raj said: (Aug 10, 2011)|
|Positive feedback always has gain more than unity.|
|Praka said: (Oct 3, 2011)|
|Negative feed back always decrease the gain of system.|
|Muthuraja said: (Jan 21, 2012)|
|The formula is 1+Rf/R1 . We know that Rf > R1 . So it is always greater than one|
|Swapna said: (Jul 4, 2012)|
|Gain Av= 1+ (Rf/R).
Even if feedback resistance is less i.e. Rf<R. The gain will be always greater than 1.
|Karan Arora said: (Jan 9, 2016)|
|For Positive Feedback circuit, Gain is = A/(1-A. B).
Hence denominator will be less than 1 always and so gain will be more than 1 always whereas for negative feedback circuit, gain is = A/(1+A.B).
Hence denominator will be more than 1 always and so gain will be less than 1 always.
All the Best.
Post your comments here:
Email : (optional)
» Your comments will be displayed only after manual approval.