AIIMS2012Physics-Conductor system
AIIMS 2012 Physics Thermal Conductivity MCQ Question
Type: MCQ-numerical-Hard-Class 11
Two conductors having same width and length, thickness d₁ and d₂, thermal conductivity K₁ and K₂ are placed one above the another. Find the equivalent thermal conductivity.
A
(d₁ + d₂)(K₁d₂ + K₂d₁)/2(K₁ + K₂)
B
(d₁ - d₂)(K₁d₂ + K₂d₁)/2(K₁ + K₂)
C
K₁d₁ + K₂d₂/d₁ + d₂
D
K₁ + K₂/d₁ + d₂
Correct Answer
Option C
Detailed Explanation
Effective thermal resistance, Rp = R1R2 / (R1 + R2).
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