Modern Physics> The thermal conductivity of copper is fou...

The thermal conductivity of copper is four times that of brass. Two rods of copper and brass having the same length and cross-section are joined in series.the free end of the copper rod is at 0 degree Celsius and that of the brass rod is at 100degree Celsius the temperature of the junction of the rod in equilibrium is

Ankit , 9 Years ago

Grade 12th pass

2 Answers

Monu

Ans:Let the thermal conductivity of Cu be 4K and of Brass be K.

Length of Copper and Brass rod ne L and their cross section area be A.

Let the temperature at junction be T.

By using formula:

KA(100-T) /L = 4KA(T-0) /L

100-T= 4T

5T=100

T=20°C.

Last Activity: 6 Years ago

Monu

Thermal conductivity of brass K of copper be 4K. Lengths be L and cross section area be A.

Let the temperature at junction be X.

Then, KA(100-X) /L = 4KA(X-0) /L

100-X=4X

5X=100

X= 20°C

Last Activity: 6 Years ago

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Modern Physics> The thermal conductivity of copper is fou...

Ankit , 9 Years ago

Monu

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