Home
Class 12
PHYSICS
There are two concentric spherical shell...

There are two concentric spherical shell of radii r and `2r`. Initially, a charge Q is given to the inner shell and both the switches are open.

If switch `S_1` is closed and then opened, charge on the outer shell will be

A

Q

B

`Q//2`

C

`-Q`

D

`-Q//2`

Text Solution

Verified by Experts

The correct Answer is:
C
`V_(outer)=0`
`:. (kQ)/(2r)+(kQ_1)/(2r)=0`
`:. Q_1=-Q=` charge on outer shell.
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    DC PANDEY|Exercise Exercise 24.1|4 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Exercise 24.2|9 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Example Type 8|3 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITORS

    DC PANDEY|Exercise (C) Chapter exercises|50 Videos

  • GRAVITATION

    DC PANDEY|Exercise All Questions|120 Videos

Similar Questions

Explore conceptually related problems

There are two concentric spherical shell of radii r and 2r . Initially, a charge Q is given to the inner shell and both the switches are open. Now, S_2 is closed and opened. The charge flowing through the swithc S_2 in the process is

There are two concentric spherical shell of radii r and 2r . Initially, a charge Q is given to the inner shell and both the switches are open. The twio steps of the above two problems are repeated b times, the potential differences between the shells will be

There are two concentration conducting spherical shells of radii r and 2r initially a charge Q is given to the inner shell Now, switch S_(1) is closed and opened then S_(2) is closed and opened and the process is repeated n times for both the keys alternatively. Find the final potential difference between the shells. [(1)/(2^(n+1))[(Q)/(4pivarepsilon_(0))r]]

There are two concentric metallic shells of radii R and 2R, if outer shell is given charge q_1 , then charge on surface of inner shell will be

There are two concentric conducting spherical shells of radii 10 cm and 20 cm. The outer shell is charged to a potential of 50esu while inner shell is earthed. The charge on outer shell is

There are two concentric metal shells of radii r_(1) and r_(2) ( gt r_(1)) . If initially, the outer shell has a charge q and the inner shell is having zero charge and then inner shell is grounded. Find : (i) Charge on the inner surface of outer shell. (ii) Final charges on each sphere. (iii) Charge flown through wire in the ground.

There are two thin concentric conducting shells of radii a and b(a lt b) . Equal charges Q given to each shell. Find the charge distribution on the inner and outer shell.

DC PANDEY-ELECTROSTATICS-Level 2 Single Correct
  1. A rod is hinged (free to rotate) ast its centre O as shown in figue. T...

    Text Solution

    |

  2. Two charges +Q each are fixed at points C and D. Line AB is the bisect...

    Text Solution

    |

  3. There are two concentric spherical shell of radii r and 2r. Initially,...

    Text Solution

    |

  4. There are two concentric spherical shell of radii r and 2r. Initially,...

    Text Solution

    |

  5. There are two concentric spherical shell of radii r and 2r. Initially,...

    Text Solution

    |

  6. A sphere of charges of radius R carries a positive charge whose volume...

    Text Solution

    |

  7. A sphere of charges of radius R carries a positive charge whose volume...

    Text Solution

    |

  8. A sphere of charges of radius R carries a positive charge whose volume...

    Text Solution

    |

  9. A sphere of charges of radius R carries a positive charge whose volume...

    Text Solution

    |

  10. A solid metallic sphere of radius a is surrounded by a conducting sphe...

    Text Solution

    |

  11. A solid metallic sphere of radius a is surrounded by a conducting sphe...

    Text Solution

    |

  12. A solid metallic sphere of radius a is surrounded by a conducting sphe...

    Text Solution

    |

  13. A 4.00 kg block carrying a charge Q = 50.0muC is connected to a spring...

    Text Solution

    |

  14. A particle of mass m and charge -Q is constrained to move along the ax...

    Text Solution

    |

  15. Three identical conducting plain parallel plates, each of area A are h...

    Text Solution

    |

  16. A long non-conducting, massless rod of length L pivoted at its centre ...

    Text Solution

    |

  17. The electric potential varies in space according to the relation V = 3...

    Text Solution

    |

  18. A simple pendulum with a bob of mass m = 1 kg, charge q = 5muC and str...

    Text Solution

    |

  19. There are two concentric spherical shell of radii r and 2r. Initially,...

    Text Solution

    |

  20. Two point charge Q(a) and Q(b) are positional at point A and B. The fi...

    Text Solution

    |