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

`sigma r^(2)//epsi_(0)kR^(2)`

B

`sigma t//epsi_(0)kR`

C

`(sigma R^(2))/(epsi_(0)kr^(2))`

D

`(sigma R)/(epsi_(0)kr)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise CRITICAL THINKING|67 Videos

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos

  • GRAVITATION

    TARGET PUBLICATION|Exercise EVALUATION TEST|24 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

TARGET PUBLICATION-ELECTROSTATICS-COMPETITIVE THINKING
  1. A 2 muF capacitor is charged to 100 V, and then its plates are connect...

    Text Solution

    |

  2. A 40 muF capacitor in a defibrillator is charged to 3000 V. The energy...

    Text Solution

    |

  3. n small drops of the same size of the same size are charged to V volt ...

    Text Solution

    |

  4. If n drops, each of capacitance C and charged to a potential V, coales...

    Text Solution

    |

  5. A parallel plate condenser has a unifrom electric field E (V//m) in th...

    Text Solution

    |

  6. The combined capacity of the parallel combination of two capacitors is...

    Text Solution

    |

  7. A slab of material of dielectric constant K has the same area as the ...

    Text Solution

    |

  8. A capacitance of 2 muF is required in an electrical circuit across a p...

    Text Solution

    |

  9. The electric field due to uniformly charged sphere of radius R as a fu...

    Text Solution

    |

  10. Energy stored in a condenser of capacity 10 uF, charged to 6kV is use...

    Text Solution

    |

  11. A thunder cloud and the earth's surface may be regarded as a pair of c...

    Text Solution

    |

  12. A string is compressed by 2 mm by a force of 8 N and condenser is char...

    Text Solution

    |

  13. Two identical capacitors, have the same capacitance C. One of them is ...

    Text Solution

    |

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

    Text Solution

    |

  15. Two capacitors C1 and C2 are charged to 120V and 200V respectively. It...

    Text Solution

    |

  16. The radius of the earth is 6400 km. Its capacitance in microfarad is……...

    Text Solution

    |

  17. The capacity of an isolated sphere of radius 9 cm is C. When it is con...

    Text Solution

    |

  18. Assertion: A parallel plate capacitor is connected across battery thro...

    Text Solution

    |

  19. Assertion: The lightening conductor at the top of high building has sh...

    Text Solution

    |

  20. Putting a dielectric substance between two plates of condenser : capac...

    Text Solution

    |