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MMLU-Pro / 11879 / A small electrical device is having eight pin fins each of 5 mm wide, 0.5 mm…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A small electrical device is having eight pin fins each of 5 mm wide, 0.5 mm thick and 25 mm long, to dissipate the heat generated within it. The thermal conductivity of the fin material is 200 W/m °K and the film heat coefficient is uniform throughout the lengths of the fin at 9 W/m^2 °K. If the device is at 350°K and the ambient air is at 300°K, determine the power dissipated through the fins.

category

engineering

options

  1. 1.15 W
  2. 0.65 W
  3. 1.10 W
  4. 1.25 W
  5. 0.85 W
  6. 1.05 W
  7. 0.95 W
  8. 0.75 W
  9. 1.00 W
  10. 0.90 W

src

stemez-TransportPhenomena

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Source and history

upstream_id / Original problem ID
11879
task_id
577f1513-ff76-564e-90d8-971c8a339957
task_key
default--test--11879
task_revision_id
1
config / split
default / test

Official source

initial import