Recent content by StuartSpencer

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    Engineering Impedance angle in RL and RC circuits

    Thank you very much, that clears it up for me!
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    Engineering Impedance angle in RL and RC circuits

    Alright, in the RC circuit link there is an RC series circuit with R = 5 Ohms C = 100 microFarads V = 10V / 60Hz The total impedance is calculated to be 27 ohms and an angle of -79 degrees. The total current is calculated to be 370.5 mA at an angle of +79 degrees. In the RL circuit, R =...
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    Engineering Impedance angle in RL and RC circuits

    Homework Statement This isn't so much of a problem itself but I found it interesting that on the All About Circuits website, two of the questions give a phase angle for impedance as opposite the angle of current. I understand the current is 90 degrees out of phase with voltage in both RL and RC...
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    Differential Equations- homogeneous (I think)

    How embarassing...I now see the error of my ways, thank you for revealing this to me. (someone should probably close this thread)
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    Differential Equations- homogeneous (I think)

    thanks for your comment, but I'm not sure I understand I can see that I skipped a few steps during that process, but I will show how I arrived there x(dv/dx)= (1/v) + 2v dv/dx = ((1/v) + 2v)/x dv=((1/v)+2v)*dx*1/x dv/((1/v)+2v) = dx/x dv*(v+(1/2v))= dx/x Forgive my ignorance, but I fail...
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    Differential Equations- homogeneous (I think)

    Homework Statement Find the general solution of the equation x*y*(dy/dx)=(x^2) + 3(y^2)Homework Equations The Attempt at a Solution So I start by realizing this is (likely) a homogeneous differential equation, and then rewrite it in the form required: dy/dx = (x/y) + 3(y/x) then, using the...
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