engineering recuitment Vizag Steel MT Mechanical 2020 Test Series Heat Transfer Conduction Fourier Law and Thermal Conductivity
According to Fourier’s law, amount of heat flow (Q) through the body in unit time is equal to
1
\(kA\frac{{dT}}{{dx}}\)
2
\(kA\frac{{d{T^2}}}{{d{x^2}}}\)
3
\(k\frac{{dx}}{{dT}}\)
4
\(kA\frac{{dx}}{{dT}}\)