Question

What is resistivity of any solution????

Answer 1

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RESISTIVITY : a measure of the resisting power of a specified material to the flow of an electric current.

The formula relating resistivity (ρ) to resistance (R), cross-sectional area (A) and length (L) is: ρ = R A L {\displaystyle \rho ={\frac {RA}{L}}}

Answer 2

Answer:

Resistivity of any solution :

When current flow in the solution through two electrodes resistance is proportional to length and inversely proportional to cross sectional area A.

R proportional A

R = p l/a

p = R*A/l

The constant p(rho) is called resistivity or specific resistance.

Unit = If l is expressed in cm, A in cm² and R in ohm, the unit of resistivity will be : cm² * ohm / cm = ohm cm

If L = 1 cm and A = 1 cm² , then

p = R

Thus, Resistivity of any solution is the resistance of one cm cube.