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MMLU-Pro / 11332 / A bare steel wire (k = 13 Btu/hr ft°F) is carrying a current of 1000 amp. The…

Problem

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question

A bare steel wire (k = 13 Btu/hr ft°F) is carrying a current of 1000 amp. The diameter of the wire is 0.75 in. The air temperature is 70°F and the surface heat transfer coefficient is 5.0 Btu/hr ft^2 °F. The electrical resistance of the wire per foot length is 0.0001 ohm. Find the centerline temperature of the wire.

category

engineering

options

  1. 600°F
  2. 560°F
  3. 500°F
  4. 480°F
  5. 420°F
  6. 418°F
  7. 390°F
  8. 330°F
  9. 450°F
  10. 350°F

src

stemez-HeatTransfer

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