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Homework Help: Relationship between resistance and heat

  1. Apr 10, 2015 #1
    Alloys have higher resistivity than pure metals. In real life, our voltage source ,i.e. battery, is constant. Using the formula H=V^2/R, we get that resistance is inversely proportional to heat. Alloys, in that case, will produce less heat as their resitivities are low, so are their resistances.
  2. jcsd
  3. Apr 10, 2015 #2


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    Low resistance with same voltage applied implies more power dissipation. Besides that, what is your point?
    If you short circuit a battery it will discharge fast while dissipating the stored energy.
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