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RLC Circuit qualitative explanation! any1?

  1. Nov 7, 2009 #1
    can some one explain me the qualitative aspects of RLC circuit
    i am satisfied with the vector diagrams i want the physical meaning behind
    say for instance in ac with inductor when current varies induced electric field is set up which opposes the current so there is a voltage drop
    similarly in capacitor it stores charges and they repel the incoming current and also for resistor
    like this i want a physical explanation of RLC series circuit what happens there and also about resonance and q factor

    can u explain in terms of voltage drops in inductor capacitor and resistor
    see the source supplies energy to current or charges,these charges then somehow or the other they have to return to lower energy state so they drop their energy (energy is same as voltage -enegy possesed by unit charge) so they drop their voltage.All i have said till now is in
    http://www.physicsclassroom.com/Clas...uits/u9l1b.cfm [Broken]
    my doubt is that how does this happen in RLC circuit
    plz dont explain in terms of vector diagrams as it is not convincing
    i want the physical meaning behind
     

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    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Nov 9, 2009 #2

    berkeman

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    Staff: Mentor

    (The physicsclassroom link appears to have expired)

    Are you familiar with the equations that relate voltage and current for the Resistor, the Inductor, and the Capacitor? That's the best place to start, in understanding how each component works with respect to how the voltage across it and the current through it are related.
     
    Last edited by a moderator: May 4, 2017
  4. Nov 9, 2009 #3
    V=IR
    E=Ldi/dt
    V=Ed
     
  5. Nov 9, 2009 #4

    berkeman

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    Staff: Mentor

    Close, but not quite right.

    Resistor [tex]V(t) = I(t) R[/tex]

    Inductor [tex]V(t) = L \frac{dI(t)}{dt} [/tex]

    Capacitor [tex]I(t) = C \frac{dV(t)}{dt}[/tex]
     
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