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Two spherical conductors A(1) and A(2) o...

Two spherical conductors `A_(1)` and `A_(2)` of radii `r_(1)` and `r_(2)` are placed concentrically in air. The two are connected by a copper wire as shown in figure. Then, the equivalent capacitance of the system is

A

`(4 pi in_(0)k r_(1)r_(2))/(r_(2)-r_(1))`

B

`4 pi in_(0)(r_(1)+r_(2))`

C

`4pi in_(0)r_(2)`

D

`4 pi in_(0)r_(1)`

Text Solution

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The correct Answer is:
C
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RESONANCE ENGLISH-CAPACITANCE-Exercise - 2
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  4. There are two conducting spheres of radius a and b (b gt a) carrying ...

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  9. In the circuit shown in figure, the capacitors are initially uncharged...

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  11. The equivalent capacitance between point A and B is

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  12. In the arrangement of the capacitor shown in the figure, each C(1) cap...

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  13. In the arrangement of the capacitor shown in the figure, each C(1) cap...

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  14. In the arrangement of the capacitor shown in the figure, each C(1) cap...

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  15. A combination arrangement of the capacitors is shown in the figure ...

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  16. A combination arrangement of the capacitors is shown in the figure ...

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  17. The V versus x plot for six identical metal plates of cross-sectiona...

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  20. The time constant of the circuit shown is :

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