Home
Class 12
PHYSICS
There are two conducting spheres of rad...

There are two conducting spheres of radius a and b `(b gt a)` carrying equal and opposite charges. They are placed at a separation d (`gt gt gt ` a and b). The capacitance of system is

A

`(4 pi epsilon_(0))/(a-b-d)`

B

`(4pi epsilon_(0))/((1)/(a)-(1)/(b)-(1)/(d))`

C

`(4pi epsilon_(0))/((1)/(a)+(1)/(b)-(1)/(d))`

D

`(4 pi epsilon_(0))/((1)/(a)+(1)/(b)-(2)/(d))`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • CAPACITANCE

    RESONANCE ENGLISH|Exercise Exercise - 3|26 Videos
  • CAPACITANCE

    RESONANCE ENGLISH|Exercise High Level Problems|16 Videos
  • CAPACITANCE

    RESONANCE ENGLISH|Exercise Exercise - 1|79 Videos
  • ATOMIC PHYSICS

    RESONANCE ENGLISH|Exercise Advanved level problems|17 Videos
  • COMMUNICATION SYSTEMS

    RESONANCE ENGLISH|Exercise Exercise 3|13 Videos

Similar Questions

Explore conceptually related problems

Two spherical conductors A and B of radii a and b ( b gt a ) are placed concentrically in air. A is given charged +Q while B is earthed. Then the equivalent capacitance of the system is

Two spherical conductors A and B of radii a and b ( b gt a ) are placed concentrically in air. A is given charged +Q while B is earthed. Then the equivalent capacitance of the system is

Two concentric hollow conducting spheres of radius a and b (b gt a) contains charges Q_(a) and Q_(b) respectively. If they are connected by a conducting wire then find out following (i) Final charges on inner and outer spheres. (ii) Heat produced during the process.

A conducting sphere of radius R is charged to a potential of V volts. Then the electric field at a distance r ( gt R) from the centre of the sphere would be

Two hollow concentric non-conducting spheres of radius the a and b (a gt b) contain charges Q_(a) and Q_(b) respectively. Prove that potential difference between the two spheres is independent of charge on outer sphere. If outer sphere is given an extra charge, is there any change in potential difference ?

Figure shown a section through two long thin concentric cylinders of radii a & b with a gt b . The cylinders have equal and opposite per unit length lambda . Find the electric field at a distance r from the axis for (i) r lt a (ii) a lt r lt b (iii) r gt b

Two similar conducting balls having charges + q and - q are placed at a separation d from each other in air. The radius of each ball is r and the separation between their centres is d (d gt gt r ). Calculate the capacitance of the two ball system

A spherical conductor A of radius r is placed concentrically inside a conducting shell B of radius R(R gt r) . A charge Q is given to A , and then A is joined to B by a metal wire. The charge flowing from A to B will be

Two small metal spheres A and B, each of radius r and supported on insulating stands, located at a distance a (a gt gt r) from each other are connected by a thin conducting wire. A point charge q is brought near the spheres at distance l (l gt gt r) on the line joining the centers of the spheres. What are the moduli of charge induced on the spheres ? .

Two coaxial rings, eacg of radius R, made of thin wire are separated by a small distabce l(l lt lt R) and carry the charges q and -q . Find the electric field potential and strength at the axis of the system as a function of the x coordinate (see figure). Investigate these functions at |x| gt gt R

RESONANCE ENGLISH-CAPACITANCE-Exercise - 2
  1. A thin metal plate M is inserted between the plates of a parallel of a...

    Text Solution

    |

  2. Two spherical conductors A(1) and A(2) of radii r(1) and r(2) are plac...

    Text Solution

    |

  3. There are two conducting spheres of radius a and b (b gt a) carrying ...

    Text Solution

    |

  4. A capacitor of capacitance C(0) is charged to a patential V(0) and the...

    Text Solution

    |

  5. A network of uncharged capacitors and resistances is as shown C...

    Text Solution

    |

  6. A 3 mu F capacitor is charged to a potential of 300 V and 2 mu F capa...

    Text Solution

    |

  7. A block of a mass of 10 kg rests on a horizontal table. The coefficien...

    Text Solution

    |

  8. In the circuit shown in figure, the capacitors are initially uncharged...

    Text Solution

    |

  9. Six capacitors each of capacitance 'C' is connected as shown in the ...

    Text Solution

    |

  10. The equivalent capacitance between point A and B is

    Text Solution

    |

  11. In the arrangement of the capacitor shown in the figure, each C(1) cap...

    Text Solution

    |

  12. In the arrangement of the capacitor shown in the figure, each C(1) cap...

    Text Solution

    |

  13. In the arrangement of the capacitor shown in the figure, each C(1) cap...

    Text Solution

    |

  14. A combination arrangement of the capacitors is shown in the figure ...

    Text Solution

    |

  15. A combination arrangement of the capacitors is shown in the figure ...

    Text Solution

    |

  16. The V versus x plot for six identical metal plates of cross-sectiona...

    Text Solution

    |

  17. Each edge of the cube contains a capacitance C. The equivalent capacit...

    Text Solution

    |

  18. The potential difference between the points P and Q in the adjoining c...

    Text Solution

    |

  19. The time constant of the circuit shown is :

    Text Solution

    |

  20. n resistances each of resistance R are joined with capacitors of ca...

    Text Solution

    |