LET'S TALK ABOUT THE RC CIRCUIT!

I feel better in this semester because no stress has yet developed except the bakwas lab record writing.
But still if you want to impress the lab people i have some interesting things to tell you now.

Most of you know that RC circuit acts as high pass when output is taken at the resistor.And low pass when at the capacitor.

Another function of this awesome thing is as an integrator and a differentiator.Yeah!you got it is the same what you read in maths since three years.As you are reading the PDC book or at least attended the lab(I was thrown out last time,but still have an idea).You have seen that for high pass when the time constant (RC less less thanT)
The output is a peak which almost goes to zero before the input does.When you still decrease the RC value the peak goes closer and closer near the discontinuity.So it is forming an impulse near the step rises and going down fast(super duper fast)which is an approximate impulse

Well you have already studied in signals and systems that the derivative of a step function is an impulse.Here the input is a square wave which is a combination of step functions.
So for every step there is an almost impulse output.

In a way you can say the RC high pass is differentiating the input.It not only differentiates the step kind of waves but any general wave up to certain limitations.

Still I have to tell you how it works as an integrator......cont.. tomorrow(this is not an online course and I am not paid..... at least this much is tooooo much...)