At the end of its manufacturing process, a silicon wafer of diameter d = 258 mm , thickness ô =1 mm is at an initial temperature of 325 C and is allowed to cool in quiescent, ambient air and large surroundings for which T =T= 25 °C, What is the initial rate of cooling by convection (kJ/s) from the Lower surface ONLY (Watts)? 3 Silicon :p= 2330 kg/m , c = 813 J/kg K, k= 87.8 W/m·K" -6 Air: v = 32.15×10m /s, k = 0.0372 W/m K, a = 46.8 ×10 m /s, Pr = 0.686, %3D Quiescent air T Tsur Silicon wafer D, 8, e, T Select one:

At the end of its manufacturing process, a silicon wafer of diameter d = 258 mm , thickness ô =1 mm is at an initial temperature of 325 C and is allowed to cool in quiescent, ambient air and large surroundings for which T =T= 25 °C, What is the initial rate of cooling by convection (kJ/s) from the Lower surface ONLY (Watts)? 3 Silicon :p= 2330 kg/m , c = 813 J/kg K, k= 87.8 W/m·K" -6 Air: v = 32.15×10m /s, k = 0.0372 W/m K, a = 46.8 ×10 m /s, Pr = 0.686, %3D Quiescent air T Tsur Silicon wafer D, 8, e, T Select one:

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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8.
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