Rec=σ1Al+σ1Al=σeqAeqleq
σeqA2l=Al(σ1σ2σ1+σ2)
\sigma eq=2\sigma 1\sigma 2\sigma 1+\sigma 2
NEET UG 2015 — Physics Electromagnetism
Two metal wires of identical dimensions are connected in series. If v1 and v2 are the conductivities of the metal wires respectively, the effective conductivity if the combination is:
Held on 30 Apr 2015 · Verified 9 Jul 2026.
2σ1σ2σ1+σ2
σ1σ2σ1+σ2
σ1+σ2σ1σ2
σ1+σ22σ1σ2
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