A 4 m thick steel plate initially at 225 °C. Suddenly, both surfaces are exposed to an ambient at 25 °C with a heat transfer coefficient h = 500 W/m²K.What is the temperature at depth 1 cm from the surface at t = 2 minutes after the start of the cooling? For steel: k = 20 W/mK, a = 16x10-6 m²/s. Lütfen birini seçin: A. 51.13 °C B. 43.14 °C C. 60.10 °C D. 52.60 °C

Elements Of Electromagnetics
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What is the temparature at depth 1 cm from the surface at t=2 minutes after the start of the coolıng ?

A 4 m thick steel plate initially at 225 °C. Suddenly, both surfaces are exposed to an ambient at 25 °C with a
heat transfer coefficient h = 500 W/m²K.What is the temperature at depth 1 cm from the surface at t = 2
minutes after the start of the cooling? For steel: k = 20 W/mK, a = 16x10-6 m²/s.
Lütfen birini seçin:
A. 51.13 °C
B. 43.14 °C
C. 60.10 °C
D. 52.60 °C
Transcribed Image Text:A 4 m thick steel plate initially at 225 °C. Suddenly, both surfaces are exposed to an ambient at 25 °C with a heat transfer coefficient h = 500 W/m²K.What is the temperature at depth 1 cm from the surface at t = 2 minutes after the start of the cooling? For steel: k = 20 W/mK, a = 16x10-6 m²/s. Lütfen birini seçin: A. 51.13 °C B. 43.14 °C C. 60.10 °C D. 52.60 °C
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