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An electrical technician requires a capa...

An electrical technician requires a capacitance of 2 µF in a circuit across a potential difference of 1 kV. A large number of 1 µF capacitors are available to him each of which can withstand a potential difference of not more than 400 V. Suggest a possible arrangement that requires the minimum number of capacitors.

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Eighteen `1muF` capacitors arranged in 6 parallel rows, each row consisting of 3 capacitors in series.
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NCERT GUJARATI-ELECTROSTATIC POTENTIAL AND CAPACITANCE -EXERCISES
  1. A long charged cylinder of linear charged density lambda is surrounded...

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  2. In a hydrogen atom, the electron and proton are bound at a distance of...

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  3. If one of the two electrons of a H(2) molecule is removed, we get a hy...

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  4. Two charged conducting spheres of radii a and b are connected to each ...

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  5. Two charges –q and +q are located at points (0, 0, –a) and (0, 0, a), ...

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  6. Figure 2.32 shows a charge array known as an electric quadrupole. For ...

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  7. An electrical technician requires a capacitance of 2 µF in a circuit a...

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  8. What is the area of the plates of a 2 F parallel plate capacitor, give...

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  9. Obtain the equivalent capacitance of the network in Fig. 2.33. For a 3...

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  10. The plates of a parallel plate capacitor have an area of 90 cm^2 each ...

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  11. A 4 muF capacitor is charged by a 200 V supply. It is then disconnect...

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  12. Show that the force on each plate of a parallel plate capacitor has a ...

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  13. A spherical capacitor consists of two concentric spherical conductors,...

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  14. A spherical capacitor has an inner sphere of radius 12 cm and an outer...

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  15. Answer carefully: (a) Two large conducting spheres carrying charges ...

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  16. A cylindrical capacitor has two co-axial cylinders of length 15 cm and...

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  17. A parallel plate capacitor is to be designed with a voltage rating 1 k...

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  18. Describe schematically the equipotential surfaces corresponding to (...

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  19. A small sphere of radius r(1) and charge q(1) is enclosed by a spher...

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  20. Answer the following: (a) The top of the atmosphere is at about 400 ...

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