Fourier's Law of heat conduction:

 Fourier's Law of heat conduction:

A iron plate which have area is A and thickness of plate x , temperature of plate is T1 and atmosphere temperature is T2 ,Q heat is transfer to plate from atmosphere temperature   within time t so 

According to this law : .

Heat (Q) is directly proportional to area of of plate and temperature difference  of plate and atmosphere , and inversely   proportional to plate thickness (x).


Q ~ A(T1-T2) /x

so,              Q is heat and

 A is area,

 T1 is temperature of plate and 

T2 is Temperature of atmosphere  &  x is the plate thickness 




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