Seven identical plates each of area $A$ and successive separation $d$ are arranged as shown in figures. The effective capacitance of the system between $P$ and $Q$ is
A$\frac{7 \varepsilon_0 A}{d}$
B$\frac{6 \varepsilon_0 A}{d}$
C$\frac{5 \varepsilon_0 A}{d}$
D$\frac{3 \varepsilon_0 A}{d}$
Medium
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B$\frac{6 \varepsilon_0 A}{d}$
b (b)
All are in parallel
$C_{\text {net }}=6 C=\frac{6 A \varepsilon_0}{d}$
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