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

Give reasons for the following Resistance of a conductivity cell filled with 0.1M KCl solution is 100 Omega . If the resistance of the same cell when filled with 0.02M KCl solution is 520 Omega . Calculate the conductivity and molar conductivity of 0.02M KCl solution. Conductivity of 0.1M KCl solution in 1.29 S//m .

What is specific resistance of a conductor? How it is related to electrical conductivity?

Obtain an expression for the equivalent resistance when n identical resistors each having resistance R are connected in series.

Calculate the total resistance in L-C-R circuit by mathematical method.

n-identical cells each of emf E and internal resistance r are connected in series. Find the expression for current in the circuit given below.