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Four capacitors are connected as shown in figure to a 30 V batter. The potential difference between points a and b is

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9 V

5 V

10 V

13 V

answer is D.

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Detailed Solution

V1V1.5=1.51

∴ V1=(1.51.5+1)(30)

=18V

V2.5V0.5=0.52.5=15

∴ V2.5=(11+5)(30)

=5V

Now, |Vab|=V1−V2.5

=13V

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