Two wires of the same dimensions but resistivities ρ 1 and ρ 2 are connected in series…
Physics · JEE Main · NTA Exams — Current Electricity
Two wires of the same dimensions but resistivities ρ1 and ρ2 are connected in series. The equivalent resistivity of the combination is
- \(\frac{\rho_{1}+\rho_{2}}{2}\)
- ρ1 + ρ2
- 2(ρ1 + ρ2)
- \(\sqrt{\rho_{1} \rho_{2}}\)
Answer
(A) _ 1 + _ 2 2
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