26. Electric light bulb consumes I = 0,2 A. Diameter tu

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26. Electric light bulb consumes I = 0,2 A. Diameter
tungsten hair d = 0,02 mm, temperature hair by burning lamp t = 20000C. Determine the strength of the electric field E in the balance. The resistivity tungsten ρ0 = 0,056 ∙ 10-6 ohm ּ m, thermal coefficient of resistance α = 4,6 ∙ 10-3grad-1.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)


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