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Homework Help: Parallel RLC Circuit

  1. Dec 7, 2011 #1
    Quick Question...


    Can I still use the general impedance equation for parallel RLC circuits even though the resistors are not in parallel with the other components? Substituting the two resistors for a single resistor with the equivalency resistance?
  2. jcsd
  3. Dec 7, 2011 #2
    The first leg is (Rc and C in series) and this combination is in parallel with (Rl and L in series)
  4. Dec 7, 2011 #3
    Does this give us...

    1) Q2/C - ICRC - V = 0
    2) ILRL - (L * diL/dt) - V = 0

    Or am I just completely off?
  5. Dec 7, 2011 #4
    The circuit is an AC circuit so you need to use Reactance of C..... Xc =1/ωC to get an expression for the impedance of the Rc C arm.
    You need to use Xl = ωL to get an expression for the Impedance of the Rl L arm
    The overall impedance is these 2 impedances in parallel.
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