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

hypothesize the basic short-run and long-run, Choose and research an indus...

Choose and research an industry where there has been a pattern of change in a particular market model (monopoly, oligopoly, etc.). Write a four to five (4-5) page paper in which

Determine the superposition principle, Determine the Superposition Principl...

Determine the Superposition Principle The Superposition Principle for numerous electric potentials, unlike electric fields and forces, is summed algebraically.  Electric potent

An egg beater, An egg beater Study an egg beater, hand drill or some o...

An egg beater Study an egg beater, hand drill or some other device in which an enhance of speed is obtained by means of gears.

Define the momentum and impulse, Define the Momentum and Impulse. Momentu...

Define the Momentum and Impulse. Momentum, p, is a measure of a car's motion.   p =  m  v where p is momentum in kg-m/s, m is mass in kilograms and v is the velocity of the ca

Evaluate the change in entropy, Two 1100-kg cars are travelling 95 km/h in ...

Two 1100-kg cars are travelling 95 km/h in opposite directions when they collide and are brought to rest. Estimate the change in entropy of the universe as a result of this collisi

State any three laws of photo electric emission, Q. State any three laws of...

Q. State any three laws of photo electric emission? (i) For a specified photo sensitive material there is a minimum frequency called the threshold frequency below which emissio

Determine the acceleration of the car, While travelling in a straight line,...

While travelling in a straight line, a car uniformly alters its speed from 50 kilometres per hour to 110 kilometres per hour in 5 seconds.  The acceleration of the car during

Determine the upward force, The force applied at A is P30 Newton's, and P31...

The force applied at A is P30 Newton's, and P31 and P32 are dimensions in mm.  A mechanic uses his left hand to support the wrench at point B. Determine the upward force required a

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