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Two concentric conducting spheres of rad...

Two concentric conducting spheres of radii `R` and `2R` are crrying charges `Q` and `-2Q`, respectively. If the charge on inner sphere is doubled, the potetial differece between the two spheres will

A

Become two times

B

Become four times

C

Be halved

D

Remain same

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The correct Answer is:
A
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AAKASH INSTITUTE ENGLISH-ELECTROSTATIC POTENTIAL AND CAPACITANCE -EXERCISE
  1. Figure shows four points A, B, C and D in uniform electric field vec(E...

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  2. Electric potential at a point P, r distance away due to a point charge...

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  3. The variation of potential with distance R from a fixed point is as sh...

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  4. An electric dipole when placed in uniform electric field has zero pote...

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  5. The work done in slowly moving an electron of charge e and mass m from...

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  6. Two point charges of + 1.0 mu C are kept stationary 2m apart. How muc...

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  7. An alpha-"particle" is accelerated through a potential difference of V...

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  8. In an arrangement of two concentric conducting shells, with centre at ...

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  9. Two concentric conducting spheres of radii R and 2R are crrying charge...

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  10. A hollow conducting sphere is placed in an electric field produced by ...

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  11. In given circuit, ratio of charge on 2 muF capacitor to the charge of ...

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  12. In the given circuit the charge on the plates of 1 muF capacitor, when...

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  13. In the given circuit , the potential difference between A and B is 18 ...

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  14. A capacitor of plate area A and separation d is filled with two dielec...

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  15. In the given circuit, the electric potential of P will be

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  16. Two conducting spheres, each given a charge q are kept far apart as sh...

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  17. An uncharged capacitor is fully charged with a battery . The ratio of ...

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  18. Three capacitors are connected as shown in the figure . The potential ...

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  19. In the given network of capacitors, the equivalent capactiance between...

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  20. A capacitor of capacitance 6 muF is connected with an emf sourface 3 V...

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