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Two spheres of radii 4 cm and 8 cm have ...

Two spheres of radii 4 cm and 8 cm have the same amount of charge. Determine the ratio of their surface densities of charge.

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CHHAYA PUBLICATION-ELEMENTARY PHENOMENA OF ELECTROSTATICS -EXERCISE
  1. Why does a spherical conductor retain its charge for a long time in co...

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  2. Why is it not possible to charge a metal rod holding it in hand? What ...

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  3. What is the utility of the drying agent inside a gold-leaf electroscop...

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  4. Charging a gold-leaf electroscope by conduction is inferior to the met...

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  5. Can two similarly charged balls be attracted by each other? If yes, ex...

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  6. To charge a gold-leaf electroscope by induction, the inducting charge ...

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  7. Bound charges can reside inside a hollow conductor. Explain.

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  8. A charged glass rod is brought near a pin fixed with the disc of a gol...

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  9. "There exists no sharp line separating conductors from insulators."-Ex...

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  10. How it is possible to transfer whole of the charge on an insulated con...

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  11. You are given a negatively charged pith ball, hanging from a string, a...

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  12. A body has -80muC charge. What is the number of excess electrons in th...

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  13. A conductor is charged with 14.4 xx 10^(-19) C. Determine the number ...

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  14. How much charge is to be given to a sphere of radius 30 cm so that its...

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  15. The surface area of a body is 25 cm^2 and its surface density of charg...

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  16. What will be the surface density of charge of a sphere of radius 4 cm,...

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  17. Two spheres of radii 4 cm and 8 cm have the same amount of charge. Det...

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  18. The diameter of a sphere is 2 cm. The sphere is hollow and conducting ...

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  19. 64 equally charged water-droplets, each of radius 4 mm, are combined t...

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  20. The ratio of the radii of two spheres is 5:2 and that of their charges...

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