Four metallic plates, each with a surface area of one side $A$, are placed at a distance $d$ from each other. The plates are connected as shown in the figure. The capacitance of the system between $a$ and $b$ is
Four metallic plates, each with a surface area of one side $A$, are placed at a distance $d$ from each other. The plates are connected as shown in the figure. The capacitance of the system between $a$ and $b$ is
- A
$\frac{{3{\varepsilon _0}A}}{d}$
- B
$\frac{{2{\varepsilon _0}A}}{d}$
- C
$\frac{2}{3}\frac{{{\varepsilon _0}A}}{d}$
- D
$\frac{3}{2}\frac{{{\varepsilon _0}A}}{d}$
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