Help finding Vr and Vl in RL circuit

Discussion in 'Homework Help' started by Friedcaps, Nov 29, 2009.

  1. Friedcaps

    Thread Starter New Member

    Nov 29, 2009
    Hi. I think this is an easy question, but I am lost right now. I have a lab that gives me
    -10kHz frequency with
    -1k ohm resistor and a
    -10mH inductor.

    I need calculate the Vr, It, and Vl. I have the Xl, but I am also supposed to have 8 Vpp on the oscilliscope with 2V/div and 10 micro s/div. Only I don't have the equipment and for the life of me, I can't understand how to start the calculations. If anyone can help, thanks a lot. I looked in the forums but can't find anything similar. Well, thanks for reading.
  2. lmartinez

    Active Member

    Mar 8, 2009
  3. Fraser_Integration


    Nov 28, 2009
    RC and RL circuits will form a sort of potential divider, but you need to factor in the impedance of C's and L's by taking the modulus of their reactances, and using that value in the potential divider equation.