Linked from
The 26 pages that link to Joule heating, each with the reason it gives.
Ohm's lawRelated: Heating can change resistance and undermine the fixed-condition assumption.
Electrical powerRelated: Resistive circuits convert electrical power into heat at a calculable rate.
ResistorRelated: This is the usual destination of energy dissipated by a resistor.
FuseRelated: Current heats the fuse element until it reaches its melting point.
Induction heatingRelated: Workpiece resistance turns induced currents into thermal energy.
Eddy currentRelated: Resistance converts eddy-current energy into heat.