Question

according to the formula H=i²Rt for the heat produced in a conductor due to the flow of current through it, HαR whereas according to the formula H=v²t/R,Hα1/R where the symbols have their usual meaning, explain the apparent contradiction​

Answer 1

Answer:

Explanation:

According to Joule's law of heating,

H= I^2Rt-----------☆

According to Ohm's law,

V= IR

V/R=I-----------------◇

Substitute I=V/R in ☆

H= (V/R)^2×R×t

H= V^2/R^2×R×t

H= (V^2/R)×t----------♡

In ☆, R(Resistance) is directly proportional to the heat produced and in ♡, R us inversely proportional to the heat produced.