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Noise across RC circuit

  1. Oct 14, 2009 #1
    Consider two regions A and B connected by a parallel RC circuit.
    Suppose the potential at region A has some noise component [tex]\xi(t)[/tex].
    Then the current that will flow through the circuit due to it will be
    [tex]I_{R}(t)+I_{C}(t)[/tex], ​
    where each current is a function of the noise.

    My question is; how do we calculate [tex]I_{C}(t)[/tex]?

    When I attempt this problem using [tex]I_{C}=\frac{dQ}{dt}[/tex], I get a term of the form [tex]\frac{d\xi}{dt}[/tex], which I'm told cannot be calculated.

    Any suggestions would be very very appreciated.
    Last edited: Oct 14, 2009
  2. jcsd
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