Question
Question: Five rods of same dimensions are arranged as shown in figure. They have thermal conductivities K<sub...
Five rods of same dimensions are arranged as shown in figure. They have thermal conductivities K1, K2, K3, K4 and K5 when points A and B are maintained at different temperatures. No heat flows through the central rod if –
A
K1K4 = K2K3
B
K1 = K4 and K2 = K3
C
K4K1=K3K2
D
K1K2 = K3K4
Answer
K1K4 = K2K3
Explanation
Solution
Wheatstone balance bridge
K2K1 = K4K3 \ K1K4 = K2K3