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A 3muF and a 5muF capacitor are connecte...

A `3muF` and a `5muF` capacitor are connected in series across a `30V` battery. A `7muF` capacitor is then connected in parallel across the `3muF` capacitor. Choose the INCORRECT option :

A

Voltage across `3muF` capacitor before connecting `7muF` capacitor is `18.75V`.

B

Charge flown through the battery after connecting `7muF` capacitor is `43.75muC`

C

`5muF`capacitor and `7muF` capacitor it has a charge of `70muC`

D

After connecting `7muF` capacitor

Text Solution

Verified by Experts

The correct Answer is:
C
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PHYSICS GALAXY - ASHISH ARORA-CAPACITANCE-NUMERICAL MCQS
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  2. Two capacitors are made in series by two metal plates and one I struct...

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  6. A capacitor of capacitance C(1)=1 muF withstand a maximum voltage of V...

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  7. A 4muF condenser is charged to 400V and then its plates are joined thr...

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  8. Condenser A has a capacity of 15 muF when it is filled with a medium o...

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  9. Two capacitors 2muF and 4muF are connected in parallel. A third capaci...

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  10. There is an air filled 1pF parallel plate capacitor. When the plate se...

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  11. Four condenser are joined as shown in the adjoining figure. The capac...

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  12. In the following circuit, the resultant capacitance between A and B is...

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  13. The effective capacitance between the points P and Q of the arrangemen...

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  14. A circuit element is placed in a blackbox. At t=0, a switch is closed ...

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  15. Two parallel plate capacitors of capacitances C and 2C are connected i...

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  16. In a circuit shown in the figure, what is potential of point A?

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  17. Two long coaxial cylindrical metal tubes stand on an insulatiog floor ...

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  19. The capacities and connection of five capacitors are shown in the adjo...

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  20. In the circuit shown here C(1) = 6muF, C2 = 3muF and battery B = 20V. ...

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