# Electronics - Operational Amplifiers - Discussion

### Discussion :: Operational Amplifiers - General Questions (Q.No.7)

7.

A noninverting closed-loop op-amp circuit generally has a gain factor:

 [A]. less than one [B]. greater than one [C]. of zero [D]. equal to one

Explanation:

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

 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.