Two identical rectangular rods of metal are welded as shown in figure `(1)` and `20 J` of heat flows
Channel: Doubtnut
Date: 2020-04-12

Two identical rectangular rods of metal are welded as shown in figure `(1)` and `20 J` of heat flows through the rods in `1 min`. How long would it take for `20 J` heat to flow through the rods if they are welded as shown in figure `(2)`