Two capacitors of capacitance 15μF and 20μF are connected in series to a 600V direct current supply. Charge on each capacitor and potential difference across 15μF capacitor are respectively.
A
5.14×10−3C,342.8V
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B
5.14×10−6C,340V
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C
340V,5.14×10−3C
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D
5.14×10−5C,340V
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Solution
The correct option is A5.14×10−3C,342.8V Given,
C1=15μF
C2=20μF
V=600v
The two capacitors are connected in series, then the equivalent capacitance is
Ceq=C1C2C1+C2=15×2015+20μF
Ceq=8.571μF
In series combination, Charge on each capacitance is same, but different