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Two rods of same length having conductiv...

Two rods of same length having conductivities 60 Wm'k, 40 Wm'K' and areas 0.2 `m^(@), 0.3m^(2)` are connected in Parallel to each other. The effective conductivity of the combination is

A

`50 Wm^(-1)K^(-1)`

B

`45 Wm^(-1) K^(-1)`

C

`52 Wm^(-1) K^(-1)`

D

`48 Wm^(-1) K^(-1)`

Text Solution

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The correct Answer is:
D
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