Physics, asked by chandanmoolchandani, 1 month ago

the difference in the temperature at the axis and surface of the cylinder is

a. {q[r(not)]^2}÷4k
b. {q[r(not)]^2}÷k
c. {q[r(not)]^2}÷2k
d. [2qr(not)]÷k

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Answered by mrahmed55

Answer:

A cylinder of radius R made of a material of thermal conductivity k1 is surrounded by a cylindrical shell of inner radius R and outer radius 2R made of a material of thermal conductivity k2. The two ends of the combined system are maintained at different temperatures. There is no loss of heat from the cylindrical surface and the system is in steady state. The effective thermal conductivity of the system is

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