Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
Fourier’s law for steady one–dimensional heat conduction through a uniform slab of area
A
A
A
, thickness
L
L
L
and temperature difference
Δ
T
\Delta T
Δ
T
is expressed as a)
2
k
A
Δ
T
L
\displaystyle \frac{2kA\,\Delta T}{L}
L
2
k
A
Δ
T
b)
k
A
Δ
T
2
L
\displaystyle \frac{kA\,\Delta T}{2L}
2
L
k
A
Δ
T
c)
k
A
Δ
T
L
\displaystyle \frac{kA\,\Delta T}{L}
L
k
A
Δ
T
d)
4
k
A
Δ
T
3
L
\displaystyle \frac{4kA\,\Delta T}{3L}
3
L
4
k
A
Δ
T
Browse the problem library