The equivalent capacitance of the combination shown in the figure is :
A$3 \mathrm{C}$
B$2 \mathrm{C}$
C$\mathrm{C} / 2$
D$3 \mathrm{C} / 2$
NEET 2021, Medium
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B$2 \mathrm{C}$
b $C_{A B}=2 C$
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