Five rods of same dimensions are arranged as shown in the figure. They have thermal
Channel: Doubtnut
Date: 2020-08-23

Five rods of same dimensions are arranged as shown in the figure. They have thermal conductivities `K _(1) , K_(2)  , K _(3) , K_( 4)` and `K_( 5)` . When points A and B are maintained at different temperatures, no heat flows through the central rod if