Recent content by maks4

^^Thanks.

Just a quick question. I'm in Australia and am currently studying Electrical Engineering. Prior to the university I am at now, I did a year at another university, and once I was accepted into the one that I am at now, I applied to receive credit/advanced standing for 4 subjects that I did at the...

Thanks heaps for your help vela, but comparing answers with a friend today..i've done it all wrong :/ i mentioned that the frequency was 50Hz, and thus omega was 100pi..well i misinterpreted what our professor said..since we were already given omega = 10 (the volt source 10cos10t) therefore i...

^^I see then, thanks for that, it makes sense for the Z(RC) to be on top. I have another question for finding a Norton related circuit, however i'll give that a go then make a topic.

^^Yes i omitted the 10ohm resistor..but i see that it's wrong. I think i have it figured out: So i zero the current source, then i compute the combined impedance of the capacitor and 10ohm resistor which are in parallel, i then i have a series combination with the 5ohm resistor and inductor. I...

^^Sorry i didn't specify, but since it's after us using superposition principle, when i zero the current source, and then apply the voltage divider, i only do it across all the impedances bar the 10ohm resistor (since this doesn't affect the other impedances I'm guessing, with the current source...

^^I thought that's how you use the current divider for impedances? Sum the impedances to the right of the resistor/impedance you're trying to find, put that sum on the numerator, then divider accordingly? The voltage divider was used the following way: V = (Z(resistor 5ohm) / Z(R) + Z(L) +...

Homework Statement The frequency is 50Hz (we've been told to always assume in our class that the frequency is 50Hz) and thus omega is 100pi. The Attempt at a Solution I don't have time to scan an image of my attempt (complete attempt) however what my query is: the way i went about to answer...

^^Thanks fleem! That puts things into perspective for me, we usually do these in tutorials so i'll see how it goes there. And yeah I'm also assuming that we don't consider the small waste in energy when the switch is changed.

Homework Statement ^^I'm sort of lost as to how to approach this question. Should i just find the voltage at node A? Then at B? But what confuses me the most are these time values we need to take into account. So what would be the best way to approach this question? Thanks.

^^I see it now then, thank you.

Homework Statement Using Lagrange Multipliers, we are to find the maximum and minimum values of f(x,y) subject to the given constraint Homework Equations f(x,y,z) = x^2 - 2y + 2z^2, constraint: x^2 + y^2 + z^2 = 1 The Attempt at a Solution grad f = lambda*grad g (2x, -2, 4z) =...

Thank you!

Homework Statement Finding the partial derivative with respect to y, so del(f)/del(y) Homework Equations exp(x+z) - that is e^(x+z) The Attempt at a Solution I firstly thought this was just e^(x+z) but then i realized, shouldn't it be just 0? Since you're finding the partial...

Ok my tutor just said that it's right...however since I'm a very paranoid person, i'd like a second opinion, just to reaffirm :)