A 1.4-m-long, 0.2-cm-diameter electrical wire extends across a room that is maintained at 20°C. Heat is generated in the wire as a result of resistance heating, and the surface temperature of the wire is measured to be 240°C in steady operation. Also, the voltage drop and electric current through The wire is measured to be 110 V and 3 A, respectively. Disregarding any heat transfer by radiation, determine the convection heat transfer coefficient for heat transfer between the outer surface of the wire and the air in the room.

A 1.4-m-long, 0.2-cm-diameter electrical wire extends across a room that is maintained at 20°C. Heat is generated in the wire as a result of resistance heating, and the surface temperature of the wire is measured to be 240°C in steady operation. Also, the voltage drop and electric current through The wire is measured to be 110 V and 3 A, respectively. Disregarding any heat transfer by radiation, determine the convection heat transfer coefficient for heat transfer between the outer surface of the wire and the air in the room.

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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i need clear ans by hand and solve very very fast in 20 min and thank you | ᴅʏʙᴀʟᴀ ?✨؛

A 1.4-m-long, 0.2-cm-diameter electrical wire extends across a room that is
maintained at 20°C. Heat is generated in the wire as a result of resistance heating,
and the surface temperature of the wire is measured to be 240°C in steady
operation. Also, the voltage drop and electric current through The wire is measured
to be 110 V and 3 A, respectively. Disregarding any heat transfer by radiation,
determine the convection heat transfer coefficient for heat transfer between the
outer surface of the wire and the air in the room.

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