What is meant by virtual ground in the op amp ?
- 15 Answers
- 44153 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / shobha
we know that open loop gain of an ideal op-amp is
infinity.This implies that the differential voltage is
zero.That is, voltage at the inverting terminal=voltage at
the non inverting terminal.If the non inverting terminal is
grounded ,it means that the inverting terminal is
grounded.In other words there is a virtual short cicuit
between the two terminals.,but no current flows through it
since there is no physical connection between the two.This
is virtual ground in op amp.
| Is This Answer Correct ? | 40 Yes | 11 No |
Post New Answer View All Answers
temperature transmitter range o to 100c over range set value 21.6ma if you give source on the field transmitter showing iop out put also 21.6ma but dcs not showing iop samething if you simulat from hart 21.6ma in dcs showing iop how its possible?
How does a mobile work?
how the embeded technology works?
Define nyquist criteria.
explain about IEEE 802.11 wireless home networking?
What is meant by a bit?
Define hybrid parameter?
What is the forbidden energy gap? How does it occur?
Explain digital circuits?
What is band gap theory?
what is the last major networking problem you trouble shoot and solved on your own in the last year?
What are the advantages of bjt?
Define fbus protocol?
Which type of connector we use at the end of GSM antenna/
What are the advantages of single phase bridge converter over single phase mid-point converter?
