1.

What is conductivity ? Give note on it.

Answer»

Solution :* Conductivity (G) : The inverse of resistance (R) is called CONDUCTANCE (G).
`therefore G=(1)/(R)=(A)/(rhol)=k((A)/(l))`
Conductivity=`(1)/("resistance")=(1)/("resistivity "rho)((A)/(l))`
`k=(1)/(rho)=(1)/("resistivity")`
* SI unit of conductivity G : The SI unit of conductance is siemens, represented by the symbol .S. and is equal to `OHM^(-1)` (also known as mho) or `Omega^(-1)`.
`1S=ohm^(-1)=1Omega^(-1)=1mho`
* Conduction of CURRENT is LESS due to resistance of ions present in electrolytic cell.


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