Maximum Power

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Discussion in 'Homework Help' started by Agonche, Sep 2, 2011.

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  1. Sep 2, 2011 #1
    Agonche

    Thread Starter Member

    Aug 26, 2011
    30
    0
    E1=120V; E2=60V; R1=R2=R3=R=30ohm

    a)Find the value of Rsh, for maximum power on that resistor.
    b)Find that power.

    [​IMG]

    So...Rsh should equal to Rth (Thevenin)
    a) Rth=R1+R1||R2||R3=30+10=40ohm
    b) Eth=20V
    I=0.25A
    P=I^2*Rsh=2.5W

    Am I right ?
     
    #1 Reply
  2. Sep 3, 2011 #2
    Agonche

    Thread Starter Member

    Aug 26, 2011
    30
    0
    Anyone...PLEASE

    BUMP
     
    #2 Reply
  3. Sep 3, 2011 #3
    Jony130

    AAC Fanatic!

    Feb 17, 2009
    4,461
    1,262
    Yes, your answer looks good.
    Are you happy now ?
     
    #3 Reply
  4. Sep 3, 2011 #4
    Agonche

    Thread Starter Member

    Aug 26, 2011
    30
    0
    yeah, I wasn't sure about Eth
     
    #4 Reply
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