Question

derive the expression of capacitance of a parallel plate capacitor with compound dielectric

Answer 1

Let us consider a parallel plate capacitor having plate area A and plate separation D.
if sigma is the surface charge density of the collecting plate then

. Q=sigma A--------(1)

let a dielectrics slab of thickness T is introduced between the plated. if Ent is the field intensity in air and E is the field intensity induced in the dielectric of relative permitivity Er then the potential difference between the plates os given by
.

Answer 2

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