00:01
In this question we are asked to find closed loop voltage gain of this circuit.
00:06
Means here we will find the ratio of v0 and v in.
00:12
Here given that this op -amp is ideal.
00:16
Ideal op -amp means input current to this op -amp is equal to 0.
00:20
That means this current and this current is equal to 0.
00:24
Or in other words we can say the ideal op -amp have infinity input input input.
00:31
Here, feedback is provided to the negative terminal of this op -amp.
00:36
That means here, this is a negative feedback op -amp.
00:41
And if we have a negative feedback op -amp, then in this case we can apply the concept of virtual ground.
00:50
And according to virtual ground, if this is node 1 and this is node 2, then voltage of node 1 is is equal to voltage of node 2.
01:00
And here, node 2 is grounded.
01:02
That means the voltage of node 2 is equal to 0...