Q. 36 A 10 mm diameter electrical conductor is covered by an insulation of 2 mm
thickness. The conductivity of the insulation is 0.08 W/m-K and the convection
coefficient at the insulation surface is 
. Addition of further insulation
of the same material will
(A) increase heat loss continuously
(B) decrease heat loss continuously
(C) increase heat loss to a maximum and then decrease heat loss
(D) decrease heat loss to a minimum and then increase heat loss
Answer: (C)
Explanation:
