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Four identical capacitors are connected ...

Four identical capacitors are connected in series with a `10 V` battery as shown in the figure. The point `N` is earthed. The potentials of points `A` and `B` are
`

A

`10V,0V`

B

`7.5V,-2.5V`

C

`5V,-5V`

D

`7.5V,2.5V`

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The correct Answer is:
B
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