please very urgent i need the right answer please be carfully A power transistor of 10 mm of diameter (D),and 15 mm of length (L), is cooled by an airstream with Tair =20 C, and h = 120 W/m^2.K.What is the maximum allowable powerdissipation, Pmax if the surface temperatureshould not exceed 80 C.a.0.229 Wb. 6.3 WC.1.5 Wd. 3.9 WClear my choice

Answered: A power transistor of 10 mm of diameter…

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.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.68P

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