Recent content by Nubcakes

They are wound around a material that looks similar to a magnet. the material is kind of brittle and a very dark gray. It reminds me of the material you see near the end of cables which is encased in plastic. It looks like a magnet and breaks like a magnet, but it is not one.

Ugh, the crazy thing is I have 4 separate RLC meters (different brands) that all say the inductor is 24~27mH and the resistor is 7.2~7.9 Ohm. I used 2 meter and oscilloscope to measure the voltages and they were within 0.03 volts of each other. I used the same 2 meters for the AC current and...

So I've never gotten a straight answer as to how you calculate the resistance of a coil (or cap for that matter). I hesitate to use the term "impedance" because I've been told too many times to count that impedance is the total resistance of a circuit. My professors dance around the topic from...

I've got this homework problem in a circuits class and I think I understand it but once I get a good ways into it, I kind of run into a dead end. It's kind of hard to explain, so I will just show the problem and my steps toward solving it. Hopefully someone here can point out the flaws in my way...

I've been working with Laplace Transforms and integration a lot lately. Many times I windup having to use partial fractions to solve the problem and frankly my algebra skills just aren't up to the task. Take this fraction for example; I know 3 ways to do it... 1 of the ways doesn't work...

Whoops... I should have caught that that problem with V2. Anyway thanks for the help, got to remember to keep a close eye on everything in these problems... its pretty easy to loose track of parts of the problem since there are so many parts.

As the name suggest, this problem is an undetermined coefficients problems where variation of parameters is necessary to solve. As with my previous question; This is not a homework problem, but it is out of the textbook so I figured this would be the appropriate place to ask if I am doing it...