Question

Three plates of common surface area $A$ are connected as shown. The effective capacitance between points $P$ and $Q$ will be

• A. ${\epsilon }_{0}A$
• B. $\frac{3{\epsilon }_{0}A}{d}$
• C. $\frac{3}{2}\frac{{\epsilon }_{0}A}{d}$
• D. $\frac{2{\epsilon }_{0}A}{d}$

Answer 1

The correct option is D $\frac{2{\epsilon }_{0}A}{d}$

REF.Image

$c_{eff}=2c=\frac{2{ϵ}_{0}A}{d}$