Verifying Joule's Law of Heating: Necessary Corrections?

[logearav]

Homework Statement

in verifying joule's law of heating namely the first law that is law of CURRENT " HEAT IS PROPORTIONAL TO SQUARE OF CURRENT"
MY TEXTBOOK MENTIONS THE FOLLOWING LINE
the initial temperature of water is measured as THETA1. let W be the heat capacity of the calorimeter and contents. now a current of I1 is passed for a time of T1. the final temperature theta2( after applying necessary correction) is noted

MY QUESTION IS " WHAT DO THEY MEAN BY AFTER APPLYING NECESSARY CORRECTION?"

Homework Equations

The Attempt at a Solution

 

[chrisk]

My guess is the necessary correction has to do with the proportionality constant, which, in your case is the resistance of the current carrying material.