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!

Homework Help: Find the value of Vx and power dissipated

  1. Jun 23, 2011 #1
    1. The problem statement, all variables and given/known data
    I'm looking to find the value of Vx and power dissipated or provided by the dependent source.


    2. Relevant equations

    I used KVL to get around the loop, but I'm not sure if that's correct.

    3. The attempt at a solution

    The main loop I get 10+3Va+10kI = 0.

    No clue what to do next. I keep thinking left and right loop, but I already see 4 unknowns 3 equations. Unless I need a junction where I1=-I2. I just don't get it.
    Please help, or get my on the right track.
    Last edited: Jun 23, 2011
  2. jcsd
  3. Jun 23, 2011 #2


    User Avatar
    Homework Helper
    Gold Member

    Re: Sources

    Your equation looks okay. One equation, 2 unknowns. You need another one. Consider expressing VA in terms of the 10K resistor and I.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook