Two wires of equal length and equal diameter and having resisttivities \boldsymbol{\rho}_1 and \rho_2 are connected in series. The equivalent resistivity of the combination is

GUJCET 2015 Physics Solved Paper

Question : 11 of 40

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Two wires of equal length and equal diameter and having resisttivities boldsymbol‌ρ1 and ρ2 are connected in series. The equivalent resistivity of the combination is

‌
p1+p2
2
(ρ1+ρ2)
‌
P1l2
ρ1+p2
√ρ1P2

Validate

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