Question

Three rods of same dimensions are arranged as shown in figure they have
thermal conductivities Kı,K, and k, The points P and Q are maintained at different
temperatures for the heat to flow at the same rate along PRQ and PQ then which
of the following option is correct
Ki
1) K3 = -(K, +K) 2) K = K, + K,
3) K3 = Ki+k;
4) Kz = 2(K, + K,)
Ans :3​

Answer 1

Explanation:

i can't answer matter you can search on Google