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A few circuit analysis questions.

  1. Oct 16, 2004 #1
    hello there,
    i'm wondering how to go about solving this problem
    A diagram of the circuit can be seen here
    http://www.compsoc.nuigalway.ie/~filter/images/circuit.gif [Broken]
    (i threw it together in microcap) the pulse sourse is actually
    meant to be a 2Amp current source. the capacitor
    has a value of 1micro-Farad.

    By using superposition i have to find the steady state DC
    current flowing in the 20 Ohm resistor. i could usually do
    this easy but the capacitor is throwing me off. im assuming
    that once a steady state has been reached, the capacitor
    will be fully charged and no current will actually be flowing
    into it right? if this is the case.. i decided that i could ignore
    its effects.. because it should really have any. and this
    appears to work. i dont know if its a fluke or not though.

    the answers are 0.4A flows in the 20 Ohm resistor due to
    the current source and 0.1A flows in the 20 Ohm resistor
    due to the voltage source.

    any ideas on how to go about this would be welcome.

    i need my mind to be put at rest :-) cheers, Nik
    Last edited by a moderator: May 1, 2017
  2. jcsd
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