A) \[7:4\]
B) \[7:6\]
C) \[4:7\]
D) \[7:8\]
Correct Answer: B
Solution :
For parallel combination (for two rods L = same and A = same) \[K=\frac{{{K}_{1}}+{{K}_{2}}}{2}=\frac{{{K}_{1}}+\frac{4}{3}{{K}_{1}}}{2}=\frac{7{{K}_{1}}}{6}\Rightarrow \frac{K}{{{K}_{1}}}=\frac{7}{6}\]You need to login to perform this action.
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