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The cell constant for an electrical cond...

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

A

`l//A`

B

`l^(2)//A`

C

`A//l`

D

`(1)/(Al)`

Text Solution

Verified by Experts

The correct Answer is:
A
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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