A fin has 5 mm diameter and 100 mm length. The thermal conductivity of fin material is 400 Wm 1K 1. One end of the fin is maintained at 130 C and its remaining surface is exposed to ambient air at 30 C. If the convective heat transfer coefficient is 40 Wm 2K 1, the heat loss (in W) from the fin is

A fin has 5 mm diameter and 100 mm length. The thermal conductivity of

1.	A fin has 5 mm diameter and 100 mm length. The thermal conductivity of fin material is 400 Wm¹K¹. One end of the fin is maintained at 130 C and its remaining surface is exposed to ambient air at 30 C. If the convective heat transfer coefficient is 40 Wm²K¹, the heat loss (in W) from the fin is
A.	0.08
B.	5.0
C.	7.0
D.	7.8
Answer» C. 7.0

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A fin has 5 mm diameter and 100 mm length. The thermal conductivity of fin material is 400 Wm 1K 1. One end of the fin is maintained at 130 C and its remaining surface is exposed to ambient air at 30 C. If the convective heat transfer coefficient is 40 Wm 2K 1, the heat loss (in W) from the fin is

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A fin has 5 mm diameter and 100 mm length. The thermal conductivity of fin material is 400 Wm¹K¹. One end of the fin is maintained at 130 C and its remaining surface is exposed to ambient air at 30 C. If the convective heat transfer coefficient is 40 Wm²K¹, the heat loss (in W) from the fin is