Home
Class 12
PHYSICS
Two equal point charges are fixed at x =...

Two equal point charges are fixed at x = -a and x = +a on the x-axis. Another point charge Q is placed at the origin. The change in the electrical potential energy of Q, when it is displaced by a small distance x along the x-axis, is approximately proportional to

A

x

B

`x^2`

C

`x^3 `

D

`1//x`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (CUTTENT ELECTRICITY )|108 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MOVING CHANGES & MEGNETISM)|95 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MAGNETISM AND MATTER )|52 Videos

  • ALTERNATING CURRENT

    AAKASH SERIES|Exercise EXERCISE - III|24 Videos

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|128 Videos

Similar Questions

Explore conceptually related problems

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 equal charges q are placed at a distance of 2a and a third charge -2q is placed at the midpoint. The potential energy of the system is

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

A point charge q is placed at the origin . How does the electric field due to the charge very with distance r from the origin ?

Two charges, each equal to q, aer kept at x=-a and x=a on the x-axis. A particle of mass m and charge q_0=q/2 is placed at the origin. If charge q_0 is given a small displacement (ylt lt a) along the y-axis, the net force acting on the particle is proportional to

Two equal positive charges Q are fixed at points (a, 0) and (-a,0) on the x-axis. An opposite charge -q at rest is relased from point (0, a) on the y-axis. The charge -q will

Two equal negative charges -q are fixed at points (0, -a) and (0,a) on y-axis. A poistive charge Q is released from rest at point (2a, 0) on the x-axis. The charge Q will

Two point charges +q and fixed at (a,0,0) and (-a,0,0) . A third point charge -q is at origin. State whether ite equlilbrium is stable, unstable or neutral if it is slightly displaced: (a) along x-axis. , (b) along y-axis.

Two free point charges +q and +4q are placed apart a distance x . A third charge is so placed that all the three charges are in equilibrium. Then

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

AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (ELECTRIC POTENTIAL & CAPACITANCE )
  1. The charges each of +Q and -Q coulomb are placed at corners A and B of...

    Text Solution

    |

  2. Two identical charges are placed at the two corner an equilateral tria...

    Text Solution

    |

  3. Two equal point charges are fixed at x = -a and x = +a on the x-axis. ...

    Text Solution

    |

  4. 10C and -10C are placed at y = 1 m and y=-1 m on y-axis 1c charge is p...

    Text Solution

    |

  5. A body of mass 1 g and carrying a change 10 ^(-8)C passes from two p...

    Text Solution

    |

  6. Two insulating plates are uniformly charged in such a way that the pot...

    Text Solution

    |

  7. Two charges Q1 and Q2 Coulombs are shown in fig. A third charge Q3 co...

    Text Solution

    |

  8. A charge Q is kept at the centre of a circle of radius 'r' If permitti...

    Text Solution

    |

  9. 2q and 3q are two charges separated by a distance 12 cm on X-axis. A t...

    Text Solution

    |

  10. A positive charge .Q. is fixed at a point, A negatively charged of mas...

    Text Solution

    |

  11. At a distance of 1 m from a fixed charge of 1 mC, a particle of mass 2...

    Text Solution

    |

  12. Two identical thin rings, each of radius R, are coaxially placed at a...

    Text Solution

    |

  13. If identical charges (-q) are placed at each corner of a cube of side ...

    Text Solution

    |

  14. A charged sphere of radius 0.02 m has charge density of 1 cm-2. The wo...

    Text Solution

    |

  15. Three charges Q+q and + q are placed at the vertices of a right -angle...

    Text Solution

    |

  16. A non-conducting ring of radius 0.5 m carries a total charge of 1.11xx...

    Text Solution

    |

  17. The radii of two metallic spheres are 5 cm and 10 cm and both carry ...

    Text Solution

    |

  18. A parallel plate condenser of capacity 5mu F is kept connected to a b...

    Text Solution

    |

  19. The time in seconds required to produce a potential difference of 20V ...

    Text Solution

    |

  20. The plates of a parallel plate condenser are being moved away with a c...

    Text Solution

    |