Recent content by shippo113

Your responses have answered much of my confusions. I then wish to know: Is it possible to have just 1 wire coming from the power plant to our homes. We connect that to our appliance and the other to the ground (earth). In the power plant it has the live wire going out and come to our home...

So Ground/Common just provides a means for reference point and a point to which all current is returned after passing through the components so it can get back to the source. Your explanations are quite good but one thing stays unanswered always everywhere. The ground as we call it is the...

I guess the word miniature has been a mistake. I would like to have Bench Power supplies with the same performance as small as the laptop power supply. :D

Grounds are always present. Even in a dual supply circuit with +15v/-15v power supply we still need a ground. The question is WHY? This question is raised in my mind especially because, battery powered circuits do not have a ground. You may say that we need all voltages with a reference point...

I am talking about those power supplies in the University lab. Also if I wish to buy any now it will still be quite big and similar to what is in the University lab. My question is, even after the technology has advanced, why are bench power supplies so huge and heavy? Why have they not become...

We all know the Differentiator and Integrator configurations of the Operational Amplifier. I realized that the RC circuits used as low pass and high pass filters can also be used as integrators and differentiators. Its obvious from their differential equations actually. As for current to...

Lets take a simple BJR transistor having an Rc. The Ic = beta*Ib, of course. But Ic=(Vcc-Vce)/Rc as well right? Now the confusion, does Ib cause Ic or is Ib possible without Ic (and thus no Vcc)? If we have Vcc and thus Vce than we shall have Ic thus we can have Ib=Ic/beta? What causes Vce, is...

hmm, what other type of networks do we have anyway? 3 port networks? Wait Resistors and Capacitors e.t.c have only 2 ports, so how can we cascade them? One input port and one output port. For 2 port systems we need to have 2 inputs and 2 outputs right, where one input and one output is...

Why is there so much talk about two port networks in books and stuff I don't fully understand, what happens if a thing is not two port?

OK so this question is from the book called "Div, Grad, Curl, and all that: an informal text on vector calculus" by h. m. Schey. This is the the question 1-6 from the book. The question asks to prove that the F(x,y) = F1(x,y)i + F2(x,y) is infact a solution to the differential equation...

excuse me but what does norm mean?

I just want to know the distinction between vector valued functions and vector fields. And how do they relate to a scalar field.

F(x,y) = F1(x,y)i + F2(x,y)j, F is a vector valued function of x,y. How to find dy/dx? The book gives the answer as dy/dx = (F1(x,y))/(F2(x,y)). But I do not know how to get to this answer at all. Find the partial derivative is what I can do, but how to get to dy/dx when the main function...

how do I make difference between vector valued functions and vector fields, I am confused how they differ and how are they same? Which is used with what? What about a function F(x,y,z,t) = (f1(x,y,z,t), f2(x,y,z,t), f3(x,y,z,t)) which maps R4 to R3, what type of function is this? F(x,y)...