Forms of heat transfer-
1. Conduction
Transfer of heat in one direction in solids
2. Convection
Cyclical motion of heat transfer in liquids and solids
3. Radiation
The transfer of energy to or from a body by means of the emission or absorption of electromagnetic radiation..
4.Induction
Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, where eddy currents (also called Foucault currents) are generated within the metal and resistance leads to Joule heating of the metal.