Hello Amrita,

Permittivity of the composite material is a weighted arithmetic mean of the permittivities of components. the weight are of course the mass fractions, The capacitance then would depend on this mean value and the geometry of the electrode(cylindrical, plane, spherical,...).

Good day

Dear Amrita De Adhikari ,

Theoretical capacitance can be calculated using the following formula,

Capacitance, C = n X F/M X V

Capacity = n X F/M X 3.6

Where, n is number of electron transfer, F is Faraday Constant, M is Molar mass, V is applied potential.

for more detail please find the attached article