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In case of Operational Amplifier,the voltage gain is very high. So by AV=Vo/Vi we can conclude that Vi is very small quantity.
Approximately we can take Vi=0.
So potential difference between input terminals becomes zero.And in most of the cases we
consider a terminal grounded.So potential of other terminal also becomes zero.
This is called Virtual Ground Concept.
What else can I help you with?
How does the gestalt psychology concept of figure ground work?
Gestalt psychology's figure-ground concept explains how we organize visual information by distinguishing an object (the figure) from its background (the ground). This perceptual process allows us to focus on specific elements within our environment while ignoring others. The figure is typically perceived as more prominent and distinct, while the ground recedes into the background, creating a coherent visual experience. This principle highlights how our brains naturally group and interpret visual stimuli, influencing how we perceive and interact with the world around us.
What is the duration of Virtual Murder?
The duration of Virtual Murder is 3000.0 seconds.
Working of a virtual keyboard in breifly?
tell me whole working of virtual keyboard
What is the duration of The Virtual Revolution?
The duration of The Silent Revolution is 2640.0 seconds.
What is myworld?
My world is a virtual world
What is virtual ground and virtual short circuit?
VIRTUAL GROUND:-1]If the non-inverting (+) terminal of OP-AMP is connected to ground, then due to the "virtual short" existing between the two input terminals, the inverting (-) terminal also be at ground potential. hence it is said to be as "virtual ground".2]similarly if the inverting (-) terminal is connected to ground, then the non- inverting (+) terminal will be at "virtual ground" potential.3]The concept of virtual ground has been used extensively for amplifier analysis, specially we use this concept in the inverting amplifier.VIRTUAL SHORT:-1] The input impedance (Ri) of an OP-AMP is ideally infinite. Hence current "I" flowing from one input terminal to the other will be zero.2] Thus the voltage drop across Ri will be zero and both input terminals will be at the same potential. In other words they are virtually shorted to each other.
What is Virtual ground?
Virtual ground is a concept used in circuits where the midpoint in a voltage divider is considered as a reference point with zero volts potential. It is often created by connecting two equal resistors in series with a power supply, resulting in a stable reference point for measuring voltages in a circuit. Virtual ground provides a convenient reference point for analyzing and designing circuits, especially in applications like operational amplifiers.
Why virtual concept is removed in java?
It is not actually removed.. AS i surfed randomly.. the point they stressed is all methods in java are virtual by default.. Hence there is not explicit virtual concept.. They are virtual cos tey check for the object refrence only dynamicaly.. i.e dynamic lookup.. a
What is ordinary ground and virtual ground in difference?
Ordinary is when you can physically stand on this said ground. Virtual ground occurs when the ground is virtually the same between two disagreeing parties. EX: I like cake and you like cake. That is virtual ground in an argument. Whereas, a disagreement would be an atheist going to Church. However that's a paradox...
Should op amp remain in active region for virtual ground?
An op amp must remain in its active region for virtual ground to be preserved.
What is the concept of virtual ground in opamps?
since an op-amp has very high open loop gain, the potential difference b/w its inputs tend to zero when a feedback n/w is implemented.to acheive a reasonable voltage at the output and thus equilibrium in the system,the output supplies the inverting input with enough voltage.the inverting input although not connected to ground,will assume a similar potential ,becoming a VIRTUAL GROUND...
Which characteristics of Op-Amp is responsible for virtual ground?
The main parameter responsible for virtual ground of an Op-Amp is Input Impedance . Generally , for an Op-Amp it is very high . So , we can conclude that the characteristics of an Op-Amp responsible for virtual ground is high input impedance .
How developing countries can embrace the concept of virtual workplace?
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What is the difference between ordinary ground And virtual ground?
Ordinary ground is a simple connection to ground. Virtual ground is an op-amp's response to maintaining a reference point in the bridge with respect to an ordinary ground. This is why an op-amp makes a nearly ideal mixer - it allows you to sum multiple inputs together with little or (nearly) no cross-talk. (Limitations, of course, being based on CMRR and frequency response.)
What is the principle of virtual ground?
If no current flows between two points. ONE point is grounded then other point is said to be virtually grounded. THIS is called principle of virtual ground.
What is virtual ground in an op amp?
0 volt reference
What is feedback resistance and what is it's use?
Feedback resistance is used to feed back the current obtained at output back into the circuit. Thus a virtual ground concept is developed.this is majorly used in applications of OPAMP[IC 741].
