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A hollow sphere of radius r is put insid...

A hollow sphere of radius r is put inside another hollow sphere of radius R. The charges on the two are +Q and -q as shown in the figure. A point P is located at a distance x from the common centre such that `r lt x lt R`. The potential at the point P is

A

`1/(4pi epsi_(0)) ((Q-q)/x)`

B

`1/(4pi epsi_(0)) (Q/R-q/r)`

C

`1/(4pi epsi_(0)) (Q/R-q/x)`

D

`1/(4pi epsi_(0)) (q/r-Q/x)`

Text Solution

Verified by Experts

The correct Answer is:
C
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DC PANDEY ENGLISH-ELECTROSTATIC POTENTIAL AND CAPACITORS-(A) Chapter exercises
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  2. A point charge q is placed at a distance of r from the centre O of an ...

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  3. A hollow sphere of radius r is put inside another hollow sphere of rad...

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  4. Three plates A, B, C each of area 50 cm^(2) have separation 3 mm betwe...

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  5. A parallel plate capacitor with air as medium between the plates has a...

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  6. The capacities and connection of five capacitors are shown in the adjo...

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  7. A charge +Q is uniformly distributed over a thin ring of the radius R....

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

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  9. Condenser A has a capacity of 15 muF when it is filled with a medium o...

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  10. In the given if point C is connected to the earth and a potential of +...

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  11. A network of four capacitors of capacity equal to C(1) = C, C(2) = 2C,...

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  12. Figures shows three spherical and equipotential surfaces 1,2 and 3 rou...

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  13. A charged oil drop of mass 2.5xx10^(-7)kg is in space between the two ...

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  14. A capacitor of 4 mu F is connected as shown in the circuit. The intern...

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  15. A parallel plate capacitor is made of two dielectric blocks in series....

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  16. A number of capacitors each of capacitance 1 muF and each one of whic...

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  17. A series combination of n(1) capacitors, each of value C(1), is charge...

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  18. Two charges +6 muC and -4 muC are placed 15 cm apart as shown. At what...

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  19. Assume that an electric field vec(E) = 30 x^(2) hat(i) exists in spac...

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  20. An electron initially at rest falls a distance of 1.5 cm in a uniform ...

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