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Joule's law of heating

  1. Apr 4, 2010 #1
    1. The problem statement, all variables and given/known data
    in verifying joule's law of heating namely the first law that is law of CURRENT " HEAT IS PROPORTIONAL TO SQUARE OF CURRENT"
    MY TEXTBOOK MENTIONS THE FOLLOWING LINE
    the initial temperature of water is measured as THETA1. let W be the heat capacity of the calorimeter and contents. now a current of I1 is passed for a time of T1. the final temperature theta2( after applying necessary correction) is noted

    MY QUESTION IS " WHAT DO THEY MEAN BY AFTER APPLYING NECESSARY CORRECTION?"
    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Apr 4, 2010 #2
    My guess is the necessary correction has to do with the proportionality constant, which, in your case is the resistance of the current carrying material.
     
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