Relationship between resistance and heat

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 2K views
Shirin K.
Messages
1
Reaction score
0
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.
 
Physics news on Phys.org
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.