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Resistive Heating Power Loss

  1. Oct 12, 2009 #1
    1. The problem statement, all variables and given/known data
    A 750-MW power plant sends its power out on a 475,000 V high-voltage line. If the total resistance of the line is 0.65 Ω, what percentage of the power is lost due to resistive heating?


    2. Relevant equations
    i have NO idea but maybe....

    P(loss)=I²R

    P(loss)=^v²/R

    P=V(V/R)

    P=VI

    V=IR

    P=E/t


    3. The attempt at a solution

    Guess i dont know where to start
     
  2. jcsd
  3. Oct 13, 2009 #2
    Use [tex]P=VI[/tex] to find [tex]I[/tex].
     
  4. Oct 13, 2009 #3
    thanks i found I then i was able to get the Ploss=I^2(R)

    got the answer Thanks!
     
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