Explain the virtual ground in an operational amplifier, Physics

Assignment Help:

Explain the significance of virtual ground in an operational amplifier?

Ans: Significance of Virtual Ground: Fig. (a) illustrates the circuit diagram of basic Inverting Amplifier. In this figure, the non-inverting terminal  is  grounded and input signal is applied to inverting terminal via resistor R1. However, difference input voltage is ideally zero: that is, voltage at the inverting terminal (v2) is approximately equal to that at non-inverting terminal (v1). Or we can say,  inverting  terminal  voltage  v2  is  approximately  at  ground  potential. Hence, inverting terminal is said to be at Virtual Ground. This notion is extremely useful in analysis of closed loop Op-amp circuits.

 

1235_Inverting Amplifier with Feedback.png


Related Discussions:- Explain the virtual ground in an operational amplifier

Young''s double slit experiment (ydse), Monochromatic light (single wavelen...

Monochromatic light (single wavelength) falls on two narrow slits S1 and S2 which are very close together acts as two coherent sources, when waves coming from two coherent sources

Searles vibration magnetometre, how to find ratio of magnetic dipole moment...

how to find ratio of magnetic dipole moment of bar magnet

Moment, Moment, Centre of mass and Centroid Moment of force is tendency...

Moment, Centre of mass and Centroid Moment of force is tendency of the force to twist or rotate an object. A measure of the body's resistance to the angular acceleration, which

What are longitudinal waves, If the particles of a medium vibrate in the di...

If the particles of a medium vibrate in the direction of wave motion the wave is known as longitudinal. a)      It goes in the form of compression and rarefaction. b)      A

What is intramodal dispersion in optical fibres, What is intramodal dispers...

What is intramodal dispersion in optical fibres? Intramodal dispersion (Δτ mat ) Intramodal dispersion is nothing although material dispersion. The velocity dissimilarity of

Fringes, What is the definition of fringes

What is the definition of fringes

Magnitisam, what is magnitisam?how north pole and south pole takes part in ...

what is magnitisam?how north pole and south pole takes part in it?

Expermient of steelyards, Steelyards Either Roman or Danish steelyards ...

Steelyards Either Roman or Danish steelyards can be improvised using short lengths of lead or iron water pipe as counter-weights and loops of wire s pivots. The rod can be o

Tan A position, how to arrange a magnetometer in tan a postion

how to arrange a magnetometer in tan a postion

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd