Conductivity k, is equal to...

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1RlA

G∗R

Λm

answer is A.

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Detailed Solution

As we know conductance is reciprocal of resistance and conductivity is the conductance of 1 cm3 of substance. Also,conductivity is reciprocal of resistivity. κ=1ρ⇒R=ρlA ρ=R⋅Al⇒κ=1R⋅Al κ=1R⋅lA=1R×G∗=G∗R

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