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Q.

A battery of emf 20V is connect to two capacitors 1µF and 3µF in series.1µF capacitor withstands a maximum of 9V and 3µF withstands a maximum voltage of 6V then

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a

1µF capacitors break

b

2µF capacitors break

c

no capacitor will break

d

both will break

answer is A.

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Detailed Solution

V1V2=C2C1=31;V=V1+V2=20
1µF capacitor
V1=34×20=15 9V so it breaks
3µF capacitor
V2=14×20=5 < 6V so it withstands

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