An electrical horizontal wire is having diameter (2 cm) and unit length. The wire is placed in room air at 10°C with heat loss (105 W) by free convection. Estimate the surface temperature for Ra=3.08 ×10. Take k = 0.02685 W/m.K Geometry Grf Prf C m Reference(s) Horizontal cylinders 0-10-5 0.4 0 10-5-104 Use Fig. 7-6 Use Fig. 7-6 4 104-109 0.53 10⁹-1012 0.13 10-10-10-2 0.675 0.058 10-2-102 1.02 0.148 10²-104 0.850 0.188 104-107 0.480 107-1012 0.125 1711 } 4 4 76t 76† 76 76 76

An electrical horizontal wire is having diameter (2 cm) and unit length. The wire is placed in room air at 10°C with heat loss (105 W) by free convection. Estimate the surface temperature for Ra=3.08 ×10. Take k = 0.02685 W/m.K Geometry Grf Prf C m Reference(s) Horizontal cylinders 0-10-5 0.4 0 10-5-104 Use Fig. 7-6 Use Fig. 7-6 4 104-109 0.53 10⁹-1012 0.13 10-10-10-2 0.675 0.058 10-2-102 1.02 0.148 10²-104 0.850 0.188 104-107 0.480 107-1012 0.125 1711 } 4 4 76t 76† 76 76 76

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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