Solving a problem in physics section 21 paragraph 11 qu

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11. Determine the current strength flowing through a tungsten wire with diameter d = 0,8 mm, the temperature at which the vacuum is maintained constant and equal to t = 2800°S. The surface of the wire to be considered gray absorption capacity a = 0,343. The resistivity of the wire at this temperature ρ = 0,92 ∙ 10-4 ohm cm ∙. Ambient environment wire t0 = 17°c.

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

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