Question

Derive an expression for equivant capacitance when 3 capaciantce are connected in series

Answer 1

Let 3 capacitor of capacity c1, c2 and c3 having potential v1 , v2 and v3
In series grouping the charge remain same in capacitors
Total V = V1 + V2 + V3 .....eq 1
As q = cv
so v = q / c
V1 = q / c1
V2 = q / c2
v3 = q / c3
on putting these values in equation 1