1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

How to solve RLC Circuit

  1. Sep 9, 2009 #1
    1. The switch in the circuit shown in Figure has been closed for a long time
    before t = 0 but opened at t = 0. Solve for i(t) for t ≥ 0.

    *Hereby I attached the circuit diagram for the question above.

    And this is where I got so far.
    (6ohm+6ohm)=12ohm
    alpha=R/2L
    = 4 Neper.
    But then I don't know how to solve for the rest.
     

    Attached Files:

    Last edited: Sep 9, 2009
  2. jcsd
  3. Sep 11, 2009 #2

    CEL

    User Avatar

    We don't do homework for you. You must show some effort in order to get some help.
    What were the current in the inductor and the voltage at the capacitor before the opening of the key. These are the initial conditions for your circuit.
    Write the mesh equation for the circuit after the opening. You will have a second order differential equation.
    Solve the differential equation and substitute the initial conditions.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: How to solve RLC Circuit
  1. RLC circuit. (Replies: 1)

  2. RLC circuit (Replies: 3)

Loading...