Home
Class 12
PHYSICS
Two identical electric point dipoles hav...

Two identical electric point dipoles have dipole moments `vec(P_1) = p hati and vec(P_2) = p hati` and are held on the x axis at distance 'a' from each other. When released, they move along the x-axis with the direaction of their dipole moments remaining unchanged. If the mass of each dipole is 'm', their speed when they are infinitely for apart is :

A

`P/a sqrt(1/(pi in_0ma))`

B

`P/asqrt(1/(2piin_0ma))`

C

`P/asqrt(2/(2piin_0ma))`

D

`P/asqrt(3/(2piin_0ma))`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAINS

    JEE MAINS PREVIOUS YEAR|Exercise Chemistry|1 Videos

  • JEE MAINS 2021

    JEE MAINS PREVIOUS YEAR|Exercise Physics (Section B )|10 Videos

Similar Questions

Explore conceptually related problems

Two point dipoles of dipole moment vec(p)_(1) and vec(p)_(2) are at a distance x from each other and vec(p)_(1)||vec(p)_(2) . The force between the dipoles is :

Two electric dipoles, A, B with respective dipole moments vec(d_(A))=-4" qa "hati and vec(d_(B))=-2" qa "hati are placed on the x-axis with a seperation R, as shown in the figure The distance from A at which both of them produce the same potential is :

A dipole of dipole moment vec(P) is placed in uniform electric field vec(E) , then torque acting on it is given by

A very small electric dipole with dipole moment p is placed in such in way that it is at a distance r from another point charge +q. The point charge lies on the axis of the dipole . Electric dipole moment is pointing towards the point charge. Determine electric dipole will attract the point charge or repel it ? What will be the magnitude of force between them ?

Two short electric dipoles having dipole moment p_(1)" and "p_(2) are placed co-axially and uni-directionally, at a distance r apart. Calculate nature and magnitude of force between them :

Two short dipoles , each of dipole moment P are placed at a large separation r . The force between them

An electric dipole is kept on the axis of a uniformly charged ring at distance d from the centre of the ring. The direction of the dipole moment is along the axis. The dipole moment is p , charge of the ring is Q & radius of the ring is R . The force on the dipole is

Two identical dipoles have their axes at right angles to each other and also bisecting each other . Calculate the field at a distance r from the point of intersection of their axes in a direction theta with the axis of one of the dipoles . The dipole moment of each dipole is equal to p .

Two identical magnetic dipoles of magnetic moments 4 A -m^(2) each, are placed at a separation of 4 m with their axis perpendicular to each other. The resultant magnetic field at a point midway between the dipoles is

JEE MAINS PREVIOUS YEAR-JEE MAINS 2020-PHYSICS
  1. In the figure shown , the current in the 10 V battery is close to...

    Text Solution

    |

  2. A charged particle going around in a circle can be considered to...

    Text Solution

    |

  3. Two identical electric point dipoles have dipole moments vec(P1) = p h...

    Text Solution

    |

  4. For a plane electromagnetic wave, the magnetic field at a point x and ...

    Text Solution

    |

  5. Two planets have masses M and 16 M and their radii are a and 2a, respe...

    Text Solution

    |

  6. A particle moving in the xy plane experiences a velocity dependent for...

    Text Solution

    |

  7. Particle A of mass m1 moving with velocity (sqrt3hati+hatj)ms^(-1) co...

    Text Solution

    |

  8. When a car is at rest, its driver sees rain deops falling on it vertic...

    Text Solution

    |

  9. A ciruit to verify Ohm's law uses ammeter and voltmeter in series or p...

    Text Solution

    |

  10. Consider the force F on a charge 'q' due to a uniformlycharged spheric...

    Text Solution

    |

  11. A student measuring the diameter of a pencil of circular cross-section...

    Text Solution

    |

  12. A double convex lens has power P and same radii of curvature R of both...

    Text Solution

    |

  13. A square loop of side 2a and carrying current I is kept in xz plane wi...

    Text Solution

    |

  14. A fluid is flowing through a horizontal pipe of varying cross - sectio...

    Text Solution

    |

  15. When a particle of mass m is attached to a vertical spring of spring c...

    Text Solution

    |

  16. In a dilute gas at pressure P and temperature T, the mean time between...

    Text Solution

    |

  17. Assuming the nitrogen molecule is moving with r.m.s. velocity at 400K,...

    Text Solution

    |

  18. The linear mass density of a thin rod AB of length L varies from A to ...

    Text Solution

    |

  19. The output characteristics of a transistor is shown in the figure. Whe...

    Text Solution

    |

  20. Find distance of centre of mass of solid hemisphere of radius 8cm from...

    Text Solution

    |