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To form a composite 10muF,200V capacitor...

To form a composite `10muF,200V` capacitor from a supply of idential capacitors marked `10muF,50V`, we require a minimum number of capacitors

A

`8`

B

`16`

C

`24`

D

`32`

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The correct Answer is:
B
The maximum `p.d`. Across a capacitor `50V`, so we can place `4` capacitor in series across a `200 V`. (To design, first satisfy voltage requirement)
`C_(eq)=2.5muF`
But we require `C_(eq)=10muF`, for this add `3` more lines in parallel to existing line
`C_(eq)=10muF`
Minimum number of capacitors =`16`

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CP SINGH-CAPACITANCE-Exercise
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  2. Consider the situation as shown in figure. The variation of potential ...

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  3. To form a composite 10muF,200V capacitor from a supply of idential cap...

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  7. A capacity of capacity C(1) is charged up to V volt and then connected...

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  8. Two identical capacitors, have the same capacitance C. One of them is ...

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  9. Two metallic spheres of radii 1 cm and 2 cm are given charges 10^(-2) ...

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  10. A battery of 20V is connected to a capacitor of capacitance 10 muF. No...

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  11. A metallic sphere of radius R having charge Q is connected to an uncha...

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  12. A condenser of capacity C(1) is charged to a potential V(0). The elect...

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

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  14. A 2muF capacitor is charged as shown in the figure. The percentage of ...

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  15. Two conducting spheres of radii r(1) and r(2) having charges Q(1) and ...

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  16. A conducting sphere of radius 10 cm is charged 10 muC. Another uncharg...

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  17. Two capacitors of capacitances 3muF and 6muF are charged to a potentia...

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  18. Two capacitor of capacitance 5 muF and 10 muF are charged to potential...

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  19. Three capacitors of capacitances 3 muF, 9 muF and 18 muF are connected...

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  20. In the given circuit if point C is connected to the earth and a potent...

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