Home
Class 12
PHYSICS
A solid spherical conductor of radius R ...

A solid spherical conductor of radius R has a spherical cavity of radius at its centre. A charge is kept at the centre of the cavity. The charge at the inner surface, outer surface are respectively.

A

`+Q , -Q , 0`

B

`-Q , +Q , 0`

C

`0,Q,0`

D

`+Q,0,0`

Text Solution

Verified by Experts

The correct Answer is:
B
`(-Q,Q,0)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Electric Field and Potential)|129 Videos

  • ELECTROSTATICS

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Electric Dipole)|21 Videos

  • ELECTRONICS

    ERRORLESS|Exercise Assertion & Reason|26 Videos

  • MAGNETIC EFFECTS OF CURRENT

    ERRORLESS|Exercise ASSERTION & REASON |18 Videos

Similar Questions

Explore conceptually related problems

A solid spherical conductor of radius R has a spherical cavity of radius a(a

A solid spherical conductor of radius R has a spherical cavity inside it (see figure). A point charge q is placed at the centre of the cavity. (a) What is the potential of the conductor? (b) If the charge q is shifted inside the cavity by a distance Deltax , how does the potential of the conductor change? (c) How does your answer to the question (a) and (b) change if the cavity is not spherical and the charge q is placed at any point inside it (see figure) (d) Draw electric field lines in entire space in each case. In which case all field lines are straight lines

A uniform solid sphere of radius R has a cavity of radius 1m cut from it if centre of mass of the system lies at the periphery of the cavity then

A metallic ball has spherical cavity at its centre. If the ball is heated, what happens to the cavity

A metallic spherical shell has an inner radius R_(1) and outer radius R_(2) . A charge is placed at the centre of the spherical cavity. The surface charge density on the inner surface is

A solid sphere of mass M and radius R has a spherical cavity of radius R/2 such that the centre of cavity is at a distance R/2 from the centre of the sphere. A point mass m is placed inside the cavity at a distanace R/4 from the centre of sphere. The gravitational force on mass m is

A spherical body of radius 'b' has a concentric cavity of radius 'a' as shown. Thermal conductivity of the material is K. Find thermal resistance between inner surface P and outer surface Q.

ERRORLESS-ELECTROSTATICS-ASSERTION & REASON
  1. A solid spherical conductor of radius R has a spherical cavity of radi...

    Text Solution

    |

  2. Assetrion: The coulomb force is the dominating force in the universe. ...

    Text Solution

    |

  3. Assertion: If three capacitors of capacitance C(1) lt C(2) lt C(3) are...

    Text Solution

    |

  4. Assertion : A metallic shield in the form of a hollow shell may be bui...

    Text Solution

    |

  5. Assertion: Electrons move away from a low potential to high potential ...

    Text Solution

    |

  6. Assertion: If the distance between parallel plates of a capacitor is h...

    Text Solution

    |

  7. Assertion : A parallel plate capacitor is connected across battery thr...

    Text Solution

    |

  8. Assertion : Electric lines of force cross each other. Reason: Electr...

    Text Solution

    |

  9. Assertion:- If a proton and an electron are placed in the same uniform...

    Text Solution

    |

  10. Assertion : Shrinkage of the protoplast of a cell occurs under the inf...

    Text Solution

    |

  11. Assertion. When charges are shared between any two bodies, no charge i...

    Text Solution

    |

  12. Assertion : An electron and positron can annihilate each other creatin...

    Text Solution

    |

  13. Assertion: Surface of asymmetrical conductor can be treated as equipot...

    Text Solution

    |

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

    Text Solution

    |

  15. Assertion : A charged capacitor is disconnected from a battery. Now, i...

    Text Solution

    |

  16. Assertion: The force with which one plate of a parallel plate capacito...

    Text Solution

    |

  17. Assertion Mass of ion is slightly differed from its element. Reason ...

    Text Solution

    |

  18. Assertion : Displacement current goes through the gap between the plat...

    Text Solution

    |

  19. Assertion. If a point charge q is placed in front of an infinite grou...

    Text Solution

    |

  20. Assertion (A): If two spherical conductors of different radii have the...

    Text Solution

    |

  21. Statement -1 : A bird perches on a high power line and nothing happens...

    Text Solution

    |