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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 0.4 0 10-5-104 Use Fig. 7-6 Use Fig. 7-6 4 104-10⁹ 0.53 1 4 10⁹-1012 0.13 1 4 10-10-10-2 0.675 0.058 76t 10-2-10² 1.02 0.148 76t 10²-104 0.850 0.188 76 104-107 0.480 76 4 107-1012 0.125 3 76 0-10-5

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 0.4 0 10-5-104 Use Fig. 7-6 Use Fig. 7-6 4 104-10⁹ 0.53 1 4 10⁹-1012 0.13 1 4 10-10-10-2 0.675 0.058 76t 10-2-10² 1.02 0.148 76t 10²-104 0.850 0.188 76 104-107 0.480 76 4 107-1012 0.125 3 76 0-10-5

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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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 Reference(s) Horizontal cylinders 0 4 10-5-104 Use Fig. 7-6 4 104-109 4 10⁹-1012 4 10-10-10-2 0.058 76t 10-2-10²2 0.148 76 10²-104 0.188 104-107 107-1012 0-10-5 0.4 Use Fig. 7-6 0.53 0.13 0.675 1.02 0.850 0.480 0.125 76 76 76
Transcribed Image Text: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 Reference(s) Horizontal cylinders 0 4 10-5-104 Use Fig. 7-6 4 104-109 4 10⁹-1012 4 10-10-10-2 0.058 76t 10-2-10²2 0.148 76 10²-104 0.188 104-107 107-1012 0-10-5 0.4 Use Fig. 7-6 0.53 0.13 0.675 1.02 0.850 0.480 0.125 76 76 76
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