In 1843 he published results of experiments showing that the heating effect he had quantified in 1841 was due to generation of heat in the conductor and not its transfer from another part of the equipment.
Godine 1843. objavio je rezultate pokusa koji su pokazali da učinak zagrijavanja koji je kvantificirao 1841. nastaje zbog stvaranja toplice u vodiču, a ne zbog prijenos sa druge opreme.