Question:-
The outer surface of a long cylinder is maintained at constant temperature. The cylinder does not have any heat source
The temperature in the cylinder will
Option (A)
increases linearly with radius
Option (B)
Decreases linearly with radius
Option(C)
Be independent of radius
Option(D)
Very logarithmical with radius
Correct Option:
(D)
Question Solution:
q = (2pLK(T1-TR))/(ln(R/r1)) and (T1-TR)/(T1-TR) = (InR/r1)/(Inr2/r1)
Logarithmic for cylindrical specimen
question-answer-faq-6082