Home
Class 12
PHYSICS
Two charges of equal magnitude q are pla...

Two charges of equal magnitude q are placed in air at a distance 2a apart and third charge `-2q` is placed at mid-point . The potential energy of the system is `(epsi_(0)` = permittivity of free space)

A

`- q^(2)/(8 pi epsi_(0)a)`

B

`-(3q^(2))/(8pi epsi_(0)a)`

C

`-(5q^(2))/(8pi epsi_(0)a)`

D

`-(7q^(2))/(8pi epsi_(0)a)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITORS

    DC PANDEY|Exercise (B) Chapter exercises|20 Videos

  • ELECTROMAGNETIC WAVES

    DC PANDEY|Exercise Sec C|22 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Medical entrances gallery|37 Videos

Similar Questions

Explore conceptually related problems

Two point charges 2q and 8q are placed at a distance r apart. Where should a third charge -q be placed between them so that the electrical potential energy of the system is a minimum

Two positive point charges of unequal magnitude are placed at a certain distance apart. A small positive test charge is placed at null point, then

Two point charges q each are fixed at (a,0) and (-a,0). A third charge Q is placed at origin. Electrons potential energy of the system will

Two point charges +q and -q are placed a distance x apart. A third charge is so placed that al the three charges are in equilibrium. Then

Two free charges q and 4q are placed at a distance d apart A third charge Q is placed between them at a distance x from charge q such that the system is in equilibrium. Then

Four small point charges (each of equal magnitude q) are placed at four corners of a regular tetrahedron of side a. find out potential energy of charge system

Two charge q and –3q are placed fixed on x–axis separated by distance d. Where should a third charge 2q be placed such that it will not experience any force ?

Two charges q and 3q are placed fixed on x-axis separated by distance 'd'. Where should a third charge 2q be placed such that it will not experience any force ?

DC PANDEY-ELECTROSTATIC POTENTIAL AND CAPACITORS-(C) Chapter exercises
  1. A conducting sphere of radius R is given a charge Q. The electric pote...

    Text Solution

    |

  2. Two concentric spheres kept in air have radii R and r. They have simil...

    Text Solution

    |

  3. Two charges of equal magnitude q are placed in air at a distance 2a ap...

    Text Solution

    |

  4. Consider two concentric spherical metal shells of radii r(1) and r(2) ...

    Text Solution

    |

  5. What is the electric potential at a distance of 9 cm from 3 nC?

    Text Solution

    |

  6. A hollow sphere of radius 0.1 m has a charge of 5 xx10^(-8) C. The pot...

    Text Solution

    |

  7. Three capacitors 3 muF, 6 muF and 6 muF are connected in series to sou...

    Text Solution

    |

  8. The capacitance of two concentric spherical shells of radii R(1) and R...

    Text Solution

    |

  9. Two capacitors of 10 pF and 20 pF are connected to 200 V and 100 V sou...

    Text Solution

    |

  10. In the given figure the capacitors C(1), C(3), C(4),C(5) have a capaci...

    Text Solution

    |

  11. A, B and C are three points in a unifrom electric field. The electric ...

    Text Solution

    |

  12. Two thin dielectric slabs of dielectric constants K(1) and K(2) (K(1) ...

    Text Solution

    |

  13. Two identical capacitors are first connected in series and then in par...

    Text Solution

    |

  14. Two capacitors having capacitances C(1) and C(2) are charged with 120 ...

    Text Solution

    |

  15. A small oil drop of mass 10^(-6) kg is hanging in at rest between two ...

    Text Solution

    |

  16. Two metal spheres of radii 0.01 m and 0.02 m are given a charge of 15 ...

    Text Solution

    |

  17. Two connectric spheres of radii R and r have similar charges with equa...

    Text Solution

    |

  18. See the digram, area of each plate is 2.0 m^(2) and d=2xx10^(-3)m. A c...

    Text Solution

    |

  19. A soap bubble is charged to a potential 12 V. If its radius is dubled,...

    Text Solution

    |

  20. A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm ra...

    Text Solution

    |