5) In a resistance microwelding process, the applied voltage is 3.5 V and overall contact resistance per unit area between butt joined sheets is 1.5 x 10-4N – cm2 . What is the amount of generated heat per unit area per unit time during the process? а. 8.17 х104W — ст -2 b. 8.17 x10 W – cm? c. 81.7 x10 W – cm-2 d. 0.817 x10 W – cm?

5) In a resistance microwelding process, the applied voltage is 3.5 V and overall contact resistance per unit area between butt joined sheets is 1.5 x 10-4N – cm2 . What is the amount of generated heat per unit area per unit time during the process? а. 8.17 х104W — ст -2 b. 8.17 x10 W – cm? c. 81.7 x10 W – cm-2 d. 0.817 x10 W – cm?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.63P

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