Fourier's Law

tourist lodge state that the negative gradient of temperature and the time rate of heat transfer or proportional at to the area at right angles of that gradient through who is the heat flows.

Fourier's law is another name of the law of heat conduction.

Differential form of Fourier's law

Fourier's law in differential form as follows equal to minus K Delta T Q equal to local heat flux density in w b square is equal to conductivity of the material in w per metre square per Kelvin Delta temperature gradient in kelvin parameter in the one dimensional problem