Express mathematically relationship among the resistance (R ), specific conductivity and cell constant.

Explanation

To express the mathematical relationship among resistance (R), specific conductivity (κ), and cell constant (K), we can follow these steps:

### Step 1: Define Specific Conductivity
Specific conductivity (κ) is defined as the conductance of a medium with a length of 1 meter and an area of cross-section of 1 square meter. Mathematically, it is expressed as:
\[ \kappa = \frac{1}{\rho} \]
where ρ is the resistivity of the medium.
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