RLC Circuit #1

Discussion in 'Homework Help' started by ihaveaquestion, May 9, 2009.

  1. ihaveaquestion

    Thread Starter Active Member

    May 1, 2009
    314
    0
    Never mind this thread.. I figured it out - Refer to RLC Circuit #2 Thread and what I said there

    I have three problems left to practice basically.. two are second-order circuits, and one is a first-order...

    Thiis is the first one:

    Question:
    http://img217.imageshack.us/img217/9984/56789.jpg

    Circuit:
    http://img217.imageshack.us/img217/6027/1234567b.jpg

    Answer:
    http://img217.imageshack.us/img217/6637/10101010.jpg

    This is all based off the teacher's answer that she gave.
    The only thing I don't understand is the part that I circled... I see how she got the first equation for A1 + A2 = 1, but the other equation that she got (using initial conditions perhaps) I don't understand...

    If someone could help me understand how she got that

    *Also, is i(0) the same thing, or the answer at least, for i(0)+ that it's asking for?
     
    Last edited: May 9, 2009
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