What is meant by virtual ground in the op amp ?
Answer Posted / kishor mahale
input resistance of the opamp is very high, so current is
cannot be flow through opamp and it passes through feedback
path. it create ground at input but it is not a actual
ground so we assume that it is virtual ground.
| Is This Answer Correct ? | 128 Yes | 46 No |
Post New Answer View All Answers
please explain the meaning of "In GSM only 30 or 35 peoples can call at at time in a singal carrier but In CDMA apprx 70 peoples can call in a singal carrier at a time."..........
how a DPAD converts voltage to current?
box1-a box2-b box3-c get 3a-2b-c in box3 using only subtract 3steps
What is meant by impedance diagram?
Draw the frequency response of DARLINGTON PAIR
Explain capacitance?
For high frequency applications will you prefer mosfet or igbt? Why?
what is call flow!
why u have changed the university?
what is polarisation o antenna ?
Which of the listed is NOT a FlexiHopper frequency band? Which of the listed is NOT a FlexiHopper feature?
What happens when an ammeter is connected across the circuit?
Define pair?
What do you understand by collector reverse saturation? In which configuration does it have a greater value?
Define lock-inrange, capture range, and pullintime of a pll