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A parallel plate capacitor of capacitanc...

A parallel plate capacitor of capacitance C is connected to a battery and is charged to a potential difference V. Another capacitor of capacitance 2C is ismilarly charged to a potential difference 2V. The charging battery is now disconnected and the capacitors are connected in parallel to each other in such a way that the poistive terminal of one is connected to the negative terminal of the other. The final energy of the configuration is

A

zero

B

`(25 CV^(2))/(6)`

C

`(3 CV^(2))/(2)`

D

`(9 CV^(2))/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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DC PANDEY-ELECTROSTATIC POTENTIAL AND CAPACITORS-(A) Chapter exercises
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  2. A charge +Q is uniformly distributed over a thin ring of the radius R....

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  3. A parallel plate capacitor of capacitance C is connected to a battery ...

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

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  6. A network of four capacitors of capacity equal to C(1) = C, C(2) = 2C,...

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  7. Figures shows three spherical and equipotential surfaces 1,2 and 3 rou...

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  9. A capacitor of 4 mu F is connected as shown in the circuit. The intern...

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  10. A parallel plate capacitor is made of two dielectric blocks in series....

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  11. A number of capacitors each of capacitance 1 muF and each one of whic...

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  12. A series combination of n(1) capacitors, each of value C(1), is charge...

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  13. Two charges +6 muC and -4 muC are placed 15 cm apart as shown. At what...

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  14. Assume that an electric field vec(E) = 30 x^(2) hat(i) exists in spac...

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  15. An electron initially at rest falls a distance of 1.5 cm in a uniform ...

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  16. A long, hollow conducting cylinder is kept coaxially inisde another lo...

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  17. The potential at a point x ( measured in mu m) due to some charges sit...

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  18. Three charges Q, +q and +q are placed at the vertices of a right-angle...

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  19. Four point charges each +q is placed on the circumference of a circle ...

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  20. The resultant capacitance between A and B in the following figure is e...

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