See first thing u hav to do is to make a circuit containing a resistor,battery, switch. We know that now the current is flowing in the circuit. Resistor hinders the path pf current, so heat is generated. Heat produced in the circiit increases when the amount of current flowing to the circuit increases by its squarei.e H directly proportion to I ^2Also, the heat increases when the resistance of the resistor increases.i.e H directly proportion to Rand also when the amount of time current is flowing in the circuit increases the heat generated in the circuit also increases .i.e H directly proportional ro T Combining all the equations we getH is directly proportional to I^2 RT H=kI^2RTAnd the value of k experimentally is 1.So, H= I^2RT....hope dis might help u

No u don't get my question..... plzzz understand the question & then reply the Answr I would be thankful to u