Question

under what condition is the heat produced in a conductor :i) is directly proportional to the resistance ii) is inversely proportional to the resistance

Answer 1

i) When the given value is of current (I)

Heat is given by I²Rt

So, heat is directly proportional to R in this case.

ii) When the given value is of V

Heat is given by V²t/R

So, heat is inversely proportional to R is this case.