The temperature difference between opposite face afa
Stuare plate of side 4cm of a copper Plath of
thickness 4mm, is to 4°c. calculate the amount of heat
transmitted between its opposite faces per sec.
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Answer:
Conductivity of the material of the rod is =K
dt
dQ
=
x
KA(T
H
−T
e
)
The heat produced per unit time by the source is P. This heat is distributed over inner surface of the spherical shell having area A=4πR
2
Let x be thickness of the shell.
The rate of heat transfer due to conduction is
dt
dQ
=
r
KAT
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