Question: An electric cable of aluminium conductor (k = 240 W/mK) is to be insulated with rubber (k = 0.15 W/mK). The cable is to be located in air (h = 6 W/m2). The critical thickness of insulation will be
[A]. 25 mm
40 mm
[A]. 25 mm
[B].
[C].
160 mm[D].
800 mmAnswer: Option A
Explanation:
No answer description available for this question.