What is heat transfer ? Give its types.

Explanation

Heat is a type of energy.
Heat is energy transfer from one system to another or from one part of a system to another part, arising due to temperature difference.
Thus, motion of heat in substance is called heat transfer.
There are 3 distinet modes of heat transfer : conduction, convection and radiation.
(1) Conduction : Heat transfer in solids.
Convection : Heat transfer in fluids.
Rasiation : No medium is required for heat transfer.