Recent content by Valhalla

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    Good Job now vs. TA position and Master's

    Thanks for the input! Also, I just read my previous post and want to apologize for how bad the grammar was in that post. I guess that is what happens when can't sleep and post on the internet at 3AM. Anyways, I made my decision and am going to go with the TA position. I got the actual...
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    Good Job now vs. TA position and Master's

    I'm really stuck here and trying to find some advice here. I am graduating on May 1st with my BSEE from a good engineering school. I have a 3 job offers and I also have a TA offer. I had originally planned to attend graduate school to achieve at least my Master's degree with a desire to go for a...
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    How Does Energy Dissipate in an LR Circuit with a 10V Battery?

    It is part your part b. Since energy is equal to \int_{0}^{t}i(t)*v(t)dt=power You know the voltage supplied by the source and you should have your function of current by using the step-by-step method for transient circuits. Now just solve! Note: In your relevant equations you have power...
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    Solve Impedance Network: Resistor & Energy Storage Element in Parallel

    I got the 9 ohms and the 90mH as well. I ended up with a couple of ugly quadratic equations and then used my TI-89 to solve them. Thanks for all the help guys!
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    Solve Impedance Network: Resistor & Energy Storage Element in Parallel

    thanks guys Ill keep working on, I figured the cap one looked like it wouldn't work.
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    Solve Impedance Network: Resistor & Energy Storage Element in Parallel

    Hi all, I'm stuck on this part of a problem. I have gotten the net impedance between two terminals A and B. The impedance I got was Z=8.39+2.22i Now the question is... The network is equivalent a to a resistor and an energy storage element connected in parallel. Find their values. I...
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    Prove a function is not analytic but it is smooth

    I tried the substitution I get p(x)=c*y^n and q(x)= e^(-y^2) which when I take the product of the limits as y goes to infinity I still have infinity times zero. Am I allowed to say that infinity times zero is zero?
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    Prove a function is not analytic but it is smooth

    given f(x)=\left\{\begin{array}{cc}e^{-x^{-2}},& \mbox{ if } x!=0 \\ 0, \mbox{ if } x=0 \end{array}\right show that the function is C-infinity smooth but not analytic What I have done so far (besides verify that it is continuous) is examine the first few derivatives I found they are in the...
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    Kirchoff's Laws, nodes and current

    try writing KVL for the other loop
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    Finding Complex Roots of Equation z^3+8=0

    I just bombed a quiz because it was 2 questions and this was one of them: Find all three complex roots of the following equation (give answers in polar and rectangular form) z^3+8=0 Looks easy enough, z=2e^{-i\frac{\theta}{3}} This is where I think I completely realized I wasn't sure what...
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    Applied Science school vs. Engineering school?

    I was in the same boat you were. I came out of the military and was enrolled in a program for electronics engineering technology. I wanted to do some form of electrical engineering at a 4 year institution. So I called up the school I wanted to attend (now my current school) EE department and...
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    Geometric interpetation of a complex number in R^2

    Ok I think I got it then. Thanks HallsofIvy!
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    Geometric interpetation of a complex number in R^2

    Yes, I understand that the complex numbers add like vectors. However, what I am confused about is that I thought that to graph them they needed to be in the complex plane. Like you said the x-axis is the real and the y-axis is the imaginary. When I look at the complex number (a+bi) and consider...
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    Geometric interpetation of a complex number in R^2

    For this problem i am given two complex numbers Z_1 , Z_2 and then a third which is the sum of the first two complex numbers Z_3 . I am then asked to find the geometric interpetation of these numbers in \mathbb{R}^2 . I am fine when graphing them in the complex plane but unsure of what they...
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    Kirchoffs current law. Someone check to make sure its correct?

    I agree with the Ic Id sign. However, Using the Node with Ia and Ic entering and Ib leaving and using KCL. I get Ia+Ic-Ib=0 therefore Ia+Ic=Ib or 3A + 1A =4A
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