A steel rod (k = 30 W/m degree) 1 cm in diameter and 5 cm long protrud – McqOptions

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1.	A steel rod (k = 30 W/m degree) 1 cm in diameter and 5 cm long protrudes from a wall which is maintained at 10 degree Celsius. The rod is insulated at its tip and is exposed to an environment with h = 50 W/m² degree and t a = 30 degree Celsius. Calculate the rate of heat dissipation
A.	2.658 W
B.	3.658 W
C.	4.658 W
D.	5.658 W
Answer» C. 4.658 W

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