Answer:
CONVECTION
Step-by-step explanation:
In blow dryer the phenomenon of heat transfer is very simple.
First of all the heating coil in the wire will heat up by using electrical current
Then this heating coil develop the thermal energy and the blower in the coil will blow out all its thermal energy outwards
Here blower forcefully pushes the air molecules which are heated by the coil and this motion of air molecules will transfer the heat from one place to other
This phenomenon of heat transfer in which medium molecules carry thermal energy from one point to another point is known as convection flow of heat.