Conductivity κ is equal to ____________.

Conductivity is the inverse of resistivity ρ, and is represented by the formula

κ =

=

= l/RA =

The quantity l/A is called cell constant denoted by the symbol, G*.

So,

κ = G*/R.

is the molar conductivity and is given by = κ/c.

Options (i) and (ii) are correct.