Home
Class 12
PHYSICS
There are four concentric shells A, B, C...

There are four concentric shells A, B, C and D of radii a,2a,3a and 4a respectively. Shells B and D are given charges `+q and -q` respectively. Shell C is now earthed. The potential difference `V_(A)-V_(C)` is

A

`(Kq)/(2a)`

B

`(Kq)/(3a)`

C

`(Kq)/(4a)`

D

`(Kq)/(6a)`

Text Solution

Verified by Experts

The correct Answer is:
D
Let charge x appears on shell C then `V_c=0`

`implies - (kq)/(4a)+(kx)/(3a)+(kq)/3a=0 implies x=-q/4`
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    VMC MODULES ENGLISH|Exercise JEE MAIN|65 Videos

  • ELECTROSTATICS

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|89 Videos

  • ELECTROSTATICS

    VMC MODULES ENGLISH|Exercise LEVEL - 1|105 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT

    VMC MODULES ENGLISH|Exercise IMPECCABLE|52 Videos

  • ENERGY & MOMENTUM

    VMC MODULES ENGLISH|Exercise JEE ADVANCE (ARCHIVE) - TRUE/FALSE TYPE|1 Videos

Similar Questions

Explore conceptually related problems

Four concentric conducting spherical shells A, B, C and D of radii a, 2a, 3a and 4a respectively. Shell B and D are given charges q and -q respectively. If shell C is grounded then potential difference (VA — VC) is

Figure shows three concentric thin spherical shells A, B and C of radii a, b, and c. The shells A and C are given charge q and -q, respectively, and shell B is earthed. Then,

Figure shows three concentric thin spherical shells A, B and C of radii a, b and c respectively. The shells A and C are given charges q and -q respectively and the shell B is earthed. Find the charges appearing on the surfaces of B and C.

Figure shows three concentric thin spherical shells A, B and C of radii a, b and c respectively. The shells A and C are given charges q and -q respectively and the shell B is earthed. Find the charges appearing on the surfaces of B and C.

Figure shows a system of three concentric metal shells, A, B and C with radii a, 2a and 3a respectively. Shell B is earthed and shell C is given a charge Q. Now if shell C is connected to shell A, then find the final charge on the shell B

Three concentric spherical conducting shells A, B and C of radii a, 2a and 4a are initially given charges +Q, -2Q and +Q respectively. The charge on the middle spherical shell B after switches S_(1) and S_(2) are simultaneously closed, will be

There are two concentric conducting spherical shells of radius r_A and r_B respectively (r_B= 2r_A) . If the inner shell is given a charge Q and outer shell is given a charge 2Q, then the potential difference between the surfaces of the shells will be K=1/(4piepsilon_0)

Three concentric spherical conductors A, B, and C of radii r, 2R, and 4R, respectively. A and C is shorted and B is uniformly charged (charge +Q). Potential at B is

Three concentric spherical conductors A, B, and C of radii r, 2R, and 4R, respectively. A and C is shorted and B is uniformly charged (charge +Q). Potential at A is

Two concentric conducting shells of radii R and 2R are having charges Q and -2Q respectively.In a region r

VMC MODULES ENGLISH-ELECTROSTATICS-LEVEL - 2
  1. The dipole moment of a system of charge +q distributed uniformly on an...

    Text Solution

    |

  2. The figure shows a nonconducting ring which has positive and negative ...

    Text Solution

    |

  3. Along the x-axis, three charges q/2,-q and q/2 are placed at x=0,x=a ...

    Text Solution

    |

  4. An electric dipole is placed at the centre of a hollow conducting sphe...

    Text Solution

    |

  5. For the situation shown in the figure (r gt gt length of dipole) mark ...

    Text Solution

    |

  6. Consider two electric dipoles P(1) and P(2) placed at (0, 0) and (1,...

    Text Solution

    |

  7. Consider two electric dipoles P(1) and P(2) placed at (0, 0) and (1,...

    Text Solution

    |

  8. Consider two electric dipoles P(1) and P(2) placed at (0, 0) and (1,...

    Text Solution

    |

  9. A thin non-conducting ring or radius a has a linear charge density lam...

    Text Solution

    |

  10. A large sheet carries uniform surface charge density sigma. A rod of l...

    Text Solution

    |

  11. A metallic spherical shell of radius R has a charge -Q on it. A point...

    Text Solution

    |

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

    Text Solution

    |

  13. Two identical conducting spheres, fixed in space, attract each other w...

    Text Solution

    |

  14. There are four concentric shells A, B, C and D of radii a,2a,3a and 4a...

    Text Solution

    |

  15. A conducting sphere of radius R(2) has a spherical cavity of radius R...

    Text Solution

    |

  16. A conducting sphere of radius R(2) has a spherical cavity of radius R...

    Text Solution

    |

  17. A conducting sphere of radius R(2) has a spherical cavity of radius R...

    Text Solution

    |

  18. For the situation shown in (fig. 3.147), mark the correct statement (s...

    Text Solution

    |

  19. Three identical metallic plates are kept parallel to one another at se...

    Text Solution

    |

  20. Two refracting media are separated by a spherical interface as shown i...

    Text Solution

    |