Home
Class 12
PHYSICS
The maximum charge that can be conveyed ...

The maximum charge that can be conveyed to a conducting sphere of diameter 20 cm (breakdown field of air `= 2xx10^(6) Vm^(-1))` is

A

`(5)/(9)xx10^(-6) C`

B

`(2)/(9) xx 10^(-5) C`

C

`10^(-9) C`

D

`10^(-7) C`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|124 Videos

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos

  • GRAVITATION

    TARGET PUBLICATION|Exercise EVALUATION TEST|24 Videos

Similar Questions

Explore conceptually related problems

A conducting sphere of radius 10 cm is given a charge of +2xx10^(-8)C . What will be its potential?

Statement-1: The maximum charge that can be given to a conductor of fixed volume depends on its shape. Statement-2: If the electric field near the condutor is sufficient for dielectric breakdown of air, no more charge can be transferred to it.

The insulation property of air breaks down at E=3xx10^(6) "volt"//meter . The maximum charge that can be given to a sphere of diameter 5m is approximately (in coulombs)

A conducting sphere of radius R=20 cm is given a charge Q=16muC . What it vecE at centre

4xx10^(10) electrons are removed from a neutral metal sphere of diameter 20 cm placed in air. The magnitude of the electric field (in NC^(-1) ) at a distance of 20 cm from its centre is

Hall effect measurements were made using a sodium conductor. The strength of the Hall field was found to be E=500xx10^(-6) Vm^(-1) with a current density J=2xx10^(6) A//m^(2) and magnetic induction B=1 T . Find the concentration of the conduction electrons in sodium.

The diameter of each plate of an air capacitor is 4cm . To make the capacity of this plate capacitor equal to that of a sphere of diameter 20 cm, the distance between the plates is x times10^(-3) m .Then x is,,.

The maximum length of a pencil that can be kept in a rectangular box of dimensions 8 cm xx 6 cm xx 2 cm , is

Surface charge density of a conducting sphere of a radius 10 cm is 8.85 xx 10^(-8) c//m^(2) . Potential at the centre of the sphere is

TARGET PUBLICATION-ELECTROSTATICS-CRITICAL THINKING
  1. For a point situated at a distance 20 cm from the axis of a long cycli...

    Text Solution

    |

  2. The surface charge density of a conductor is 12xx10^(-12) C//m^(2) .If...

    Text Solution

    |

  3. The maximum charge that can be conveyed to a conducting sphere of diam...

    Text Solution

    |

  4. Two spheres A and B are having radii 5 cm and 10 cm and carrying charg...

    Text Solution

    |

  5. A conducting sphere of radius 0.1 m has a uniform positive charge dens...

    Text Solution

    |

  6. Two conducting spheres of radii r(1) and r(2) are charged to the same ...

    Text Solution

    |

  7. A charge Q=1.8 mu C is placed at the centre of a cube of adge 55 cm. T...

    Text Solution

    |

  8. The electric field in a region is radially outward with magnitude E = ...

    Text Solution

    |

  9. Cyclinder is charged by 10mC. Length of cyclinder is 1km and radius is...

    Text Solution

    |

  10. A metal of surface area 1 m^(2) is charged with sqrt(8.85) mu C in air...

    Text Solution

    |

  11. The surface density of charge on the surface of a charged conductor in...

    Text Solution

    |

  12. A metal sphere of radius 10 cm is given a charge of 12 muC. The force ...

    Text Solution

    |

  13. The energy density per unit volume of medium in an electric field of i...

    Text Solution

    |

  14. A sphere of radius 1 cm has potential of 10000V, then energy density n...

    Text Solution

    |

  15. A molecule in which centre of gravity of positive nuclei and revolving...

    Text Solution

    |

  16. In polar dielectrics , tiny electric dipoles are randomly oriented

    Text Solution

    |

  17. Choose the correct relation between polarisation and electric suscepti...

    Text Solution

    |

  18. A parallel plate capacitor is charged by connecting is plates to the t...

    Text Solution

    |

  19. A parallel plate capacitor is charged and the charging battery is then...

    Text Solution

    |

  20. A parallel plate capacitor is charged to a potential difference of 50V...

    Text Solution

    |