1.

The cell constant for an electrical conductivity cell having two electrodes of area A placed at a distance of l is expressed by

Answer»

`L//A`
`l^(2)//A`
`A//l`
`(1)/(Al)`

SOLUTION :As we know, conductivity (K) is reciprocal of RESITIVITY `(rho)`, ie.
`K = (1)/(rho)and rho = R(A)/(l) thereforeK+ (1)/(R)(1/A) or K=Gl/A`
where, G is conductance of the cell the quantity `(l/A)` is CALLED cell constant (R)


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