An Aluminium rod has a diameter of 40mm. and is 750mm long. If the temperature difference between the ends of the rod is 100C .
Take the thermal conductivity of Aluminium to be 235 Wm-1K-1
k * A * ΔT / L
The Attempt at a Solution
235 * 0.097 m * 100 / 0.75
The answer is supposed to be 39.4 Js-1 but I can't get it right? So I don't know if I'm doing something wrong, and I've tried so many times. I don't know what I'm doing wrong.