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A condenser of capacity 10 mu F is charg...

A condenser of capacity `10 mu F` is charged to a potential of `500 V`. Its terminals are then connected to those of an uncharged condenser of capacity `40 mu F`. The loss of energy in connecting them together is.

A

1J

B

2.5J

C

10J

D

12J

Text Solution

Verified by Experts

The correct Answer is:
A
`Delta E = (1)/(2) (C_(1)C_(2))/(C_(1) + C_(2)) (V_(1) - V_(2))^(2)`
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NARAYNA-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Exercise -1 (C.W)
  1. A non conducting sphere of radius R is charged uniformly. At what dist...

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  2. Two charged spherical conductors of radii R(1) and R(2) when connected...

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  3. Consider two concentric spherical metal shells of radii r1" and "r2(r2...

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  4. The radii of two charged metal spheres are 5cm and 10cm both having th...

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  5. The capacity of a parallel plate condenser consisting of two plates ea...

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  6. Sixty four spherical drops each of radius 2 cm and carrying 5 C charge...

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  7. A highly conducting sheet of aluminium foil of negligible thickness is...

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  8. Two metal plates are separated by a distance d in a parallel plate con...

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  9. A radio capacitor of variable capacitance is made of n parallel plates...

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  10. The radius of the circular plates of a parallel plate condenser is 'r'...

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  11. When two capacitors are joined in series the resultance capacity is 2....

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  12. Three condensers 1 mu F,2 mu F and 3 mu F are connected in series to a...

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  13. The effective capacitance between the point P and Q in the given figur...

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  14. The equivalent capacitance between P and Q is

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  15. The equivalent capacity between the points X and Y in the circuit with...

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  16. The equivalent capacitance of the network given below is 1muF. The val...

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  17. Three capacitors of 3 mu F,2 mu F and 6 mu F are connected in series. ...

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  18. Two spheres of radii 12 cm and 16 cm have equal charge. The ratio of t...

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  19. A condenser of capacity 10 mu F is charged to a potential of 500 V. It...

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  20. A 2 mu F condenser is charged to 500 V and then the plates are joined ...

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