Question:-
The heat flow equation through a cylinder of inner radius ‘r1’ and outer radius ‘r2’ is desired in the same form as that for heat flow through a plane wall. The equivalent area Am is given by
Option (A)
(A1 + A2) / (loge(A2/A1))
Option (B)
(A1+A2) / (2loge(A2/A1))
Option(C)
(A2-A1) / (2loge(A2/A1)
Option(D)
(A2-A1) / (loge(A2/A1)
Correct Option:
(D)
Question Solution:


question-answer-faq-6068