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Eight small drops, each of radius r and ...

Eight small drops, each of radius `r` and having same charge q are combined to form a big drop. The ratio between the potentials of the bigger drop and the smaller drop is

A

`8:1`

B

`4:1`

C

`2:1`

D

`1:8`

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The correct Answer is:
B
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DC PANDEY-ELECTROSTATIC POTENTIAL AND CAPACITORS-(A) Chapter exercises
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  6. Consider a system composed of two metallic spheres of radii r(1) and r...

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  8. The distance between the circular plates of a parallel plate condenser...

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  9. The expression for the capacity of the capacitor formed by compound di...

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  10. The equivalent capacitance between A and B will be "A.-|C|-|2C|-|4C|...

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  11. Four plates of equal area A are separated by equal distance d and are ...

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  12. Four plates of the same area of cross-section are joined as shown in t...

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  13. Three equal capacitors, each with capacitance C are connected as shown...

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  14. If a slab of insulating material 4 xx 10^(–5) m thick is introduced be...

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  15. In this figure the equivalent capacitance between A and B will be

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  16. In the connection shown in the adjoining figure, the equivalent capaci...

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  17. The resultant capacitance of given circuit between point P and Q is

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  18. What is the effective capacitance between point A and B in the given f...

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  19. In the figure a capacitor is filled with dielectrics K(1), K(2) and K(...

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  20. Four metallic plates each with a surface area A of one side and placed...

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