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Current, voltage, and power

  1. Feb 9, 2010 #1
    1. The problem statement, all variables and given/known data

    I am reviewing an exam which is from the 2001 of my class

    http://img194.imageshack.us/img194/5340/65220653.jpg [Broken]
    http://img194.imageshack.us/img194/12/35654148.jpg [Broken]

    The answer key states for no. 10 the answer is
    Voltage out in circuit with dependent source is -2 V.


    and for no. 11 is
    60-ohms resistor in single big loop dissipates 15 W

    2. Relevant equations



    3. The attempt at a solution

    Problem is how do they get these numbers, the question seems to be really simple... can someone guide me
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Feb 9, 2010 #2

    berkeman

    User Avatar

    Staff: Mentor

    The attachments didn't seem to work...
     
    Last edited by a moderator: Apr 24, 2017
  4. Feb 9, 2010 #3
    I fixed it now.

    For no. 10, my guess is that v0 is 0.04V, as 10mA has to equal to the dependent source which is 0.25v0. Is this true?

    For no. 11, p = v^2/R, so why isn't it just 100^2/60
     
    Last edited: Feb 9, 2010
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