Question

How is electrical conductance of a conductor related with length and area of cross section of the conductor?

• A. $G=l.a.k^{-1}$
• B. $G=k.l.a^{-1}$
• C. $G=k.a.l^{-1}$
• D. $G=k.l.a^{-2}$

Answer 1

The correct option is C $G=k.a.l^{-1}$

Electric conductance is given by,
$G=k\cdot a\cdot l^{-1}$
where, $k$ (kappa) is specific conductance.