Home
Class 12
PHYSICS
A charge q is placed at the centre of th...

A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in equilibrium if q is equal to:

A

`Q//2`

B

`-Q//2`

C

`Q//4`

D

`-Q//4`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    DC PANDEY|Exercise Assertion and Reason|15 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Match the columns|5 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Check point 1.5|20 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITORS

    DC PANDEY|Exercise (C) Chapter exercises|50 Videos

  • GRAVITATION

    DC PANDEY|Exercise All Questions|120 Videos

Similar Questions

Explore conceptually related problems

If a charge q is placed at the centre of the line joining two equal charges Q such that the system is in equilibrium then the value of q is

A point charge q is placed at the centre of a line joining two equal charges Q. The whole system is in the state of equilibrium. Can you impose some lower limit on the magnitude of the charge Q?

A charge "q" is placed at the centroid of an equilateral triangle. Three charges having same "],[" charge equal to "Q" are placed at the vertices of the triangle.The system of four charges will be in equilibrium if "q" is equal to

A charge q is placed in the middle of a line joining the two equal and like point charge Q .This charge q will remain in equilibrium if q=(Q)/(x) .What is x ?

A charge Q is placed at the centre of the line joining two point charges +q and +q as shown in figure. The ratio of charges Q and q is

Two equal charges, +Q each, are at a distance r from each other. A third charge is placed on the line joining the above two charges such that all these charges are in equilibrium. Find q, in terms of Q.

Two point charges q_(1) = +2 C and q_(2) = - 1C are separated by a distance d . The position on the line joining the two charges where a third charge q = + 1 C will be in equilibrium is at a distance

Two idential point charges Q are kept at a distance r from each other. A third point charge is placed on the line joing the above two charges such that all the three charges are in equilibrium. The third charge (a) should be of magnitude q=……….. (b) should be of sign ....... (c ) should be placed ........ .

DC PANDEY-ELECTROSTATICS-Taking it together
  1. A charges Q is placed at each of the two opposite corners of a square....

    Text Solution

    |

  2. A point positive charge is brought near an isolated conducting sphere ...

    Text Solution

    |

  3. A charge q is placed at the centre of the line joining two equal charg...

    Text Solution

    |

  4. The centres of two identical small conducting spheres are 1m apart. Th...

    Text Solution

    |

  5. Charges q, 2q,3q and 4q are placed at the corners A,B,C and D of a squ...

    Text Solution

    |

  6. A solid conducting sphere of radius a has a net positive charge 2Q. A ...

    Text Solution

    |

  7. The electric flux through the surface

    Text Solution

    |

  8. The point charges Q and -2Q are placed at some distance apart. If the ...

    Text Solution

    |

  9. A ball with charge -50 e is placed at the centre of a hollow spherical...

    Text Solution

    |

  10. A mass m=20 g has a charge q= 3.0 mC. It moves with a velocity of 20 m...

    Text Solution

    |

  11. Two parallel metal plates having charges +Q and -Q face each other at ...

    Text Solution

    |

  12. A square surface of side L metre in the plane of the paper is placed i...

    Text Solution

    |

  13. Three concentric metallic spherical shells of radii R, 2R, 3R are give...

    Text Solution

    |

  14. If a charged particle is projected on a rough horizontal surface with ...

    Text Solution

    |

  15. Electric charges q, q, –2q are placed at the corners of an equilateral...

    Text Solution

    |

  16. A point charge +q is placed at a distance d from an isolated conductin...

    Text Solution

    |

  17. Under the influence of the Coulomb field of charge +Q, a charge -q is ...

    Text Solution

    |

  18. Two identical conducting sphere carrying different charges attact each...

    Text Solution

    |

  19. The electric field at a distance 3R//2 from the centre of a charge con...

    Text Solution

    |

  20. Under the action of a given coulombic force the acceleration of an ele...

    Text Solution

    |