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Sabina Hetan Dayal
Asked: 2022-11-06T13:42:36+05:30 In:

Three metal rods of same length and same cross – sectional area are connected in parallel. If their conductivities area 70, 110, 180 `Wm^(-1) K^(-1)` respectively, the effective conductivity (in `Wm^(-1) K^(-1))` of the combination is
A. 90
B. 260
C. 130
D. 360

Three metal rods of same length and same cross – sectional area are connected in parallel. If their conductivities area 70, 110, 180 `Wm^(-1) K^(-1)` respectively, the effective conductivity (in `Wm^(-1) K^(-1))` of the combination is
A. 90
B. 260
C. 130
D. 360
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  1. Correct Answer – B

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