Home
Class 11
PHYSICS
Assuming an expression for the potential...

Assuming an expression for the potential of an isolated conductor, show that the capacitance of such a sphere will be increased by a factor n, if it is enclosed within an earthed concentric sphere, the ration of the spheres being `n/(n - 1)`.

A

`(n^(2))/(n-1)`

B

`(n)/(n-1)`

C

`(2n)/(n+1)`

D

`(2n+1)/(n+1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    DC PANDEY ENGLISH|Exercise Comprehension|36 Videos

  • ELECTROSTATICS

    DC PANDEY ENGLISH|Exercise Matrix Matching|2 Videos

  • ELECTROSTATICS

    DC PANDEY ENGLISH|Exercise Integer|17 Videos

  • ELASTICITY

    DC PANDEY ENGLISH|Exercise Medical entrances s gallery|21 Videos

  • EXPERIMENTS

    DC PANDEY ENGLISH|Exercise Subjective|15 Videos

Similar Questions

Explore conceptually related problems

The capacity of an isolated sphere is increased n times when it is enclosed by an earthed concentric sphere. The ratio of their radii is

In a close packed array of N spheres, the number of tetrahedral holes are

Assertion: A positively charged rod is held near a neutral conducting solid sphere as illustrated below. The sphere lies on a insulated stand. The potential of ground (or earth) is zero. The potential at point A (point A need not be centre of the sphere) is higher compared to potential of gound (earth). Reason: In this situation of assertion, the potential at the centre of conducting sphere is positive. the solid sphere being conducting, potential at each point in the sphere is same.

Assertion: A positively charged rod is held near a neutral conducting solid sphere as illustrated below. The sphere lies on a insulated stand. The potential of ground (or earth) is zero. The potential at point A (point A need not be centre of the sphere) is higher compared to potential of gound (earth). Reason: In this situation of assertion, the potential at the centre of conducting sphere is positive. the solid sphere being conducting, potential at each point in the sphere is same.

A narrow parallel beam of light is incident on a transparent sphere of refractive index n if the beam finally gets focused at a point situated at a distance= 2xx("radius of sphere") form the center of the sphere then find n ?

A horizontal force F = 14 N acts at the centre of mass of a sphere of mass m = 1 kg . If the sphere rolls without sliding, find the frictional force (in N )

An isolated sphere has a capacitance of 50 pF. (a) Calculate its radius. (b) how much charge should be placed on it to raise its potential ot 10^4 V ?

An isolated sphere has a capacitance of 50 pF. (a) Calculate its radius. (b) how much charge should be placed on it to raise its potential ot 10^4 V ?

Find the equation of the sphere described on the joint of points Aa n dB having position vectors 2 hat i+6 hat j-7 hat ka n d-2 hat i+4 hat j-3 hat k , respectively, as the diameter. Find the center and the radius of the sphere.

DC PANDEY ENGLISH-ELECTROSTATICS-JEE Advanced
  1. In the ciruit shown in, C=6 muF. The charge stored in the capacitor of...

    Text Solution

    |

  2. A capacitor of capacity C(1) = 1 muF is charged to a potential of 100 ...

    Text Solution

    |

  3. Assuming an expression for the potential of an isolated conductor, sh...

    Text Solution

    |

  4. Three conducting spheres A, B and C are shown in figure. The radii of ...

    Text Solution

    |

  5. The metal plate on the left in Fig, carries a charge +q. The metal pla...

    Text Solution

    |

  6. A particle of mass an charge q is projected vertically upwards .A unif...

    Text Solution

    |

  7. A conducting sphere of radius R is charged to a potential of V volts. ...

    Text Solution

    |

  8. A spherical charged conductor has surface charge density sigma.The int...

    Text Solution

    |

  9. A spherical charged conductor has surface charge density σ.The intensi...

    Text Solution

    |

  10. Two concentric spherical conducting shells of radii R and 2R are carry...

    Text Solution

    |

  11. A conducting shell of radius R carries charge -Q. A point charge +Q is...

    Text Solution

    |

  12. The gap between the plates of a parallel plate capacitor is filled wit...

    Text Solution

    |

  13. If the capacitance of each capacitor is C, then effective capacitance ...

    Text Solution

    |

  14. Two identical positive charges are fixed on the y-axis, at equal dista...

    Text Solution

    |

  15. Two ideantical point charges are placed at a separation of d. P is a p...

    Text Solution

    |

  16. An air capacitor consists of two parallel plates B as shown in the fig...

    Text Solution

    |

  17. A hollow sphere of radius 2R is charged to V volts and another smalle...

    Text Solution

    |

  18. A point charge q is placed at a distance of r from the centre O of an ...

    Text Solution

    |

  19. Find the equivalent capacitance between A and B

    Text Solution

    |

  20. A small electric dipole is placed at origin with its dipole moment dir...

    Text Solution

    |