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A rod has K = 400 W m–1 K–1, A = 1.0 × 10^-4 m², L = 0.5 m and ends 100 K apart. What is the heat current?
A80 W
B8 W
C4 W
D16 W
Answer & Solution
Correct answer: B. 8 W
H = K A ΔT/L = 400 × 1.0 × 10^-4 × 100 / 0.5 = 8 W.
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