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Electrostatics — Physics STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 SciencePhysicsElectrostatics4 Marks
Question
Derive an expression for the effective or equivalent capacitance (capacity) of a combination of a number of capacitors connected in series.
OR
Derive an expression for the effective capacitance of three capacitors connected in series.
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(1) If there are n parallel plates then there will be $(n-1)$ capacitors, hence
$
C=(n-1) \frac{A \varepsilon_0}{d}
$
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