Home
Class 12
PHYSICS
A charge Q is uniformly distributed over...

A charge Q is uniformly distributed over the surface of two conducting concentric spheres of radii R and r (Rgtr). Then, potential at common centre of these spheres is

A

`(kQ(R+r))/(Rr)`

B

`(kQ(R+r))/((R^(2)+r^(2)))`

C

`(kQ)/(sqrt(R^(2)+r^(2)))`

D

`kQ((1)/(R)-(1)/(r))`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST 3

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MCQs|41 Videos

  • MOCK TEST 5

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MCQs|42 Videos

Similar Questions

Explore conceptually related problems

A charge Q is uniformly distributed inside a non- conducting sphere of radius R . Find the electric potential energy stored in the system.

There is a hemispherical shell having charge Q uniformly distributed on its surface. Radius of the shell is R. Find electric potential and field at the centre (of the sphere).

two metal spheres of radii R_(1) and R_(2) are charged to the same potential. The ratio of charges on the spheres is

A charge q is distributed over two concentric hollow sphere of radii a and b(bgtc) such that the surface densities are equal.Find the potential at the common centre.is

The centre of neutral conducting sphere of radius "R" is at distance 'd' from a point charge "Q" .The potential of the sphere is

A point charge q is placed at a distance of r from cebtre of an uncharged conducting sphere of rad R(lt r) . The potential at any point on the sphere is

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MOCK TEST 4-MCQs
  1. Figures shows the vibrations of four air column. The ratio of frequenc...

    Text Solution

    |

  2. During an isothermal expansion of an ideal gas

    Text Solution

    |

  3. When unpolarised light is incident on a plane glass plate at Brewster’...

    Text Solution

    |

  4. A particle of mass 4m at rest decays into two particles of masses m an...

    Text Solution

    |

  5. What is the electric potential at a point distance 100 cm from the cen...

    Text Solution

    |

  6. A charged particle of mass m and charge q is accelerated through a pot...

    Text Solution

    |

  7. A charge Q is uniformly distributed over the surface of two conducting...

    Text Solution

    |

  8. The axes of the polariser and analyser are inclined to each other at 6...

    Text Solution

    |

  9. A car is fitted with a convex side-view mirror of focal length 20 cm. ...

    Text Solution

    |

  10. A closed organ pipe and an open organ pipe of same length produce 4 be...

    Text Solution

    |

  11. A metal bar of length L and area of cross-section A is clamped between...

    Text Solution

    |

  12. If M be the mass of the earth, R its radius (assumed spherical) and G ...

    Text Solution

    |

  13. The needle of a deflection galvanometer shows a deflection of 60^(@) d...

    Text Solution

    |

  14. Two bodies A and B initially at rest are attrached towards each other ...

    Text Solution

    |

  15. In an ac circuit l=100 sin 200 pi t . The time required for the curren...

    Text Solution

    |

  16. The combination of the gates shown in the figure results in

    Text Solution

    |

  17. Huygen's principle of secondary waves

    Text Solution

    |

  18. A modulated carrier wave has maximum and minimum amplitudes of 800 m v...

    Text Solution

    |

  19. A positively charged ball hangs from a long silk thread. Electric file...

    Text Solution

    |

  20. A frame made of metalic wire enclosing a surface area A is covered wit...

    Text Solution

    |