∵ in parallel, Rnet=R1+R2R1R2
⇒2Aρl=ρ1Al+ρ2Alρ1Al×ρ2Al
⇒2ρ=6+36×3=2⇒ρ=4
JEE Main 2021 — Physics Electromagnetism
Two wires of same length and thickness having specific resistances 6Ωcm and 3Ωcm respectively are connected in parallel. The effective resistivity is ρΩcm. The value of ρ to the nearest integer, is ___ .
Held on 18 Mar 2021 · Verified 6 Jul 2026.
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