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Solid State Physics (direction plane, volume & basis vectors of primitive unit cell)
Hello experts!!
Q#1) Write down the family members of {110} plane in a cubic crystal.
Attempted Answer) I think it should be (110),(101),(011),(-1-10),(-10-1),(0-1-1). Is this right?
Q#2) Describe a method to...
Re: Operational Amplifier
@LuW
As you are saying to Goldsmith that his drawing is confusing to users. So, let me say it is not correct. He is helping me on a thread where he teach me with this single drawings have two current directions. And I think it is a good way to visualize different...
Re: Operational Amplifier
Hello sir..
That is what I am trying to say you so far. In your own diagram, look, you have draw current from blue line through Rf and with red line through Rf. This is I am asking for, how only one feedback path provides blue line and red line current at a time...
Re: Operational Amplifier
Hello sir!
Thank you for reply.
I am still not getting about this,
I know output will be 180 out of phase. But when we are using feedback and at input most current flow through Rf so at output some part of output is fed back to the input through feedback then why...
Hello experts!
I have some question regarding with Op-amp.
Q#1) We know that we use Op-amp with closed loop not with open loop. But why we use negative feedback why don't positive feedback?
Q#2) Here is diagram of the simple Op-amp with feedback. We know due to high input impedance of the...
@goldsmith
Yes sir! I know but I am confuse if both have same characteristics even with common RE the why not common RC.
It is really good point in your reply. I don't know what are the advantages of differential amplifier. But you made it. I appreciate.
I know my second circuit is wrong. But...
Hello experts!
I hope all of you will be fine.
Here is image.
As you can see, it is the differential amplifier i.e. the first circuit of the Opamp.
We know for differential amplifier we choose transistors to be identical with all respects. So their emitter are also common and share one...
Oh sorry!
I understand as follows,
When we connect a diode in the forward mode then the current follows in forward direction and due to inter-electrode capacitance some charges are stored in the diode. So when we disconnect and connect again in reverse direction then the stored charges are...
Hello sir!
Welcome again and much glad to see you.
I don't know what is Trr. I never heard about this.
I searched it here, but it is still not clear to me.
**broken link removed**
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