Recent content by nik2011

Hello, Given a simple electric circuit like the one below (taken from Wikipedia) If we were to start from tracking all the forces acting on each individual free electron in the circuit, would it be possible to eventually find all the currents and voltages acting in the circuit? Probably a...

Hello, This isn't an actual homework but just a thing I'm wondering about. Suppose we have a capacitor with plates A and B. The plates are not connected. Plate A has 10 electrons more than plate B. Now someone connects the plates with a wire. The electrons on plate A repel each other stronger...

Could you name a couple of such model? I found this Wikipedia's article http://en.wikipedia.org/wiki/Computational_electromagnetics#Finite-difference_time-domain_.28FDTD.29" Though I don't understand a single word in it, to be honest. But just out of curiosity, do some of the things described...

sophiecentaur, Thanks for your answer. I agree using Kirchoffs Laws or the Superposition theorem is the best approach to analyse this circuit. What I'm trying to do is to imagine what physical processes actually happen when two currents sums up. I would be pretty happy with a simplified...

Hello! If we want to find i3, we can apply the superposition theorem to the circuit below. It gives For V2 set to 0: i3' = V1 / R1 For V1 set to 0: i3'' = V2 / (R1 || R2) i3 = i3' - i3'' = V1/R1 - V2 / (R1 || R2) i3 = 10 / 500 - 2.5 / 83.3 = -0.01A My question is Do the i3' and i3''...

Would it be correct to think that when V1's voltage changes then as a result Ua and Ic change to appropriate values at the same time so neither of them comes first/second?

Thank you, gneill.

Hi gneill, Thank you for the answer. As I understand point A's potential is Ua = Ir2 * R2 + Ic * Xc and Ic = Ua / Xc Where Ua - point A's potentiatel Ir2 - curren through R2 R2 - R2 resistance in Ohms Ic - current through the capacitor Xc - the capacitor's impedance So to...

Hello guys! This is not quite a homework, but anyway. Homework Statement I'm trying to figure out some details about the circuit below. The circuit contains two voltage sources. V1 is 5V 100Hz AC source, V2 is 15V DC source. I know I can analyze this circuit simply treating it as if there...

Anyone, please? Sorry, may be I posted to a wrong section of the forum. I am not actually a physicist. I'm willing to learn to understand the explanation but I need to know if the explanation exists in the first place.

I was reading about http://en.wikipedia.org/wiki/Aeolian_harp" . It is explained that "the harp is driven by von Karman vortex street effect" So I read about http://en.wikipedia.org/wiki/Von_Karman_vortex_street" . I also read a few other sources on von Karman vortex street effect. It is...