Recent content by john88

Well ye I took away the 2k resistor, and that's not correct but I still end up whit the same answer when I use the current divider, but its not negative. I = 2.72/6500 So now I_tot = I + I1 This must be the right answer

ok so if I use the superposition method I get this: First I have this situation http://img387.imageshack.us/my.php?image=firstum9.jpg First I replace the current source whit an open circuit and I end up whit this: http://img66.imageshack.us/my.php?image=second2ud4.jpg So I =...

Homework Statement Homework Equations KCL The Attempt at a Solution I have some question for this circuit. http://img510.imageshack.us/my.php?image=questpt3.jpg I want to calculate the current I, my first thought was that it can't go any current because the potential...

ok, got everything together now, ty for the help!

so if short circuit the system. Can I setup KCL on node A and then solve for I, I = I(source) + I(R10). But it seems odd to do so.

I trying to figure out a thevenin equivalent circuit I want to calculate the current I so I can't get the resistance for the thevenin equivalent. Im not 100% sure how to calculate I, can I use KCL on the node under the number -8.7V? http://img98.imageshack.us/my.php?image=curfc7.jpg

ty!...

Homework Statement I want to write e^e^i on the form a + bi Homework Equations I think I have to use log The Attempt at a Solution Well I've tried to use log, but there's probably an easy way, but I just can't figure it out. btw does someone know whether you can use latex...

ok I got it! ty...I was alittle confused by the answer.

hi I want to find an analytic funktion if Re(z) = 1 - x - 2xy My initial thought was to set U(x,y) = 1 - x - 2xy and then solve for V(x,y) through du/dx = dv/dy but it doesn't seem to go as far as I am concernd. Then I thought about the fact that Re(z) = (z + zbar)/2 and then work...

hmm ok..but how do I start whit the calculations then? and isn't it possible to calculate the electric flux D and go from there?

Homework Statement I have two parallell plates, they are separated a distance of 1 cm. The potential difference is 10kV. A 0.5 cm thick plastic plate lies between the two plates and has a relative permitivitty of 6. Calcualte E and D in the air and in the plastic plate. Homework Equations...

I posted a picture at the problem...anyway how do I begin to calculate the electric field? Just to use E = V/d doesn't cut it, I need to incorporate the dielectric constants also http://img297.imageshack.us/img297/5145/namnlsvvvvun4.th.jpg

Homework Statement Two parallel plates are connected to a constant electrostatic potential. Half the space between the plates is filled whit air, one quarter whit a conductor and the fourth quarter whit a dielectric whit realtive permittivity of 80. What is the maximum electric field in the...

Hi Two spherical shells where the inner has a radius a and the outer a radius of b. The inner has a total charge of -Q whereas the outer shell has a total charge +Q. The question is to calculate the electric field intensity everywhere in space. My question is now, how do I choose the limits...