Home
Class 12
PHYSICS
A sphere of radius R has a charge densit...

A sphere of radius R has a charge density `sigma`. The electric intensity at a point at a distance r from its centre is

A

`E=(sigmaR^(2))/(in_(0)kr^(2))`

B

`E=(sigma)/(in_(0)k)`

C

`E=R^(2)`

D

`E=in_(0)kr^(2)sigma^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PHOTONS

    NIKITA PUBLICATION|Exercise MCQs|162 Videos
  • GRAVITATION

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|409 Videos

Similar Questions

Explore conceptually related problems

Consider a thin spherical shell of radius R consisting of uniform surface charge density sigma . The electric field at a point of distance x from its centre and outside the shell is

Consider a sphere of radius R and cylinder of length L. If both have same charge density sigma and E_(s) and E_(c) are electric intensity at a point at a distance r from axis of sphere and cylinder respectively, then E_(s) equal to

An insulated sphere of radius r haas a uniform volume charge density lambda . The electric field at a point A , which is at distance r from its centre is given by (R gt r)

A hallow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the centre:

A sphere of radius R has a uniform distribution of electric charge in its volume. At a distance x from its centre, for x lt R , the electric field is directly proportional to

If sigma is surface density of charge on the charged cylinder of radius R, then electric intensity E at outer point at a distance r from its axis is

NIKITA PUBLICATION-ELECTROSTATICS-Multiple Choice Questions
  1. A cylinder of length L has a charge of magnitude q. The electric inten...

    Text Solution

    |

  2. The electric intensity at a point near a charged conductor of surface ...

    Text Solution

    |

  3. A sphere of radius R has a charge density sigma. The electric intensit...

    Text Solution

    |

  4. A charge +q is placed at the mid point of a cube of side L. The electr...

    Text Solution

    |

  5. The electric flux through a hemispherical surface of radius R placed i...

    Text Solution

    |

  6. Electric field intensity at a point is inversely proportional to cube ...

    Text Solution

    |

  7. Electric intensity at a point due to a charged cylinder of infinite le...

    Text Solution

    |

  8. The electric field inside a spherical shell of uniform surface charge ...

    Text Solution

    |

  9. As one penetrates uniformly charged conducting sphere,what happens to ...

    Text Solution

    |

  10. Inside a hollow charged spherical conductor, the potential

    Text Solution

    |

  11. A hollow metal ball carrying an electric charge produces no electric f...

    Text Solution

    |

  12. A hollow metal sphere of radius 5 cm is charged so that the potential ...

    Text Solution

    |

  13. A spherical shell of radius R has a charge +q units. The electric fiel...

    Text Solution

    |

  14. The intensity of electric field at a point due to charged conductor of...

    Text Solution

    |

  15. The charge deposited per unit area of the surface is called

    Text Solution

    |

  16. If sigma is surface density of charge on the charged cylinder of radiu...

    Text Solution

    |

  17. The charge deposited per unit length of cylinder is called as

    Text Solution

    |

  18. The charge density on the surface of a conducting sphere is 64xx10^(-7...

    Text Solution

    |

  19. An isolated conducting sphere of radius 0.1m placed in vacuum carries ...

    Text Solution

    |

  20. A conductor having a charge density of 120muC//m^(2) is surrounded by ...

    Text Solution

    |