Home
Class 12
PHYSICS
On the X-Y plane two point charges "+q a...

On the X-Y plane two point charges `"+q` and `-q` are placed at positions (0, L) and (0,-L) respectively. Find an expression for the intensity of the electric field at a point (0, y) where `y` >> `L`. Express the electric field in terms of the dipole moment so formed.

Promotional Banner

Topper's Solved these Questions

  • MODEL PAPER SET-07

    UNITED BOOK HOUSE|Exercise EXERCISE|47 Videos

  • MODEL PAPER SET-09

    UNITED BOOK HOUSE|Exercise EXERCISE|40 Videos

Similar Questions

Explore conceptually related problems

Two charges -q and +q are located at points (0,0,-a) and (0,0,a) respectively. (a) What is the electrostatic potential at the points (0,0,z) and (x,y,0) ?

Two point charges of magnitude +q and -q are placed at (-d/2, 0, 0) and (d/2, 0,0) respectively. Find the equation of the equipotential surface where the potential is zero.

Two electric charge +8q and -2q, are placed at x=0 and x=L respectively. At what point on the x-axis , net electric field intensity due to two becomes zero ?

Two points having charges q_(1) and q_(2) are placed at the coordinates (a, 0, 0) and (0, b, 0) respectively. Find out the electric field intensity of a third point charge placed at (0, 0, c) due to those two charges.

Charges 4Q, q and Q are placed along x-axis positions x=0, x= (l)/(2) and x=l respectively. The value of q so that the force on charge Q is zero is

Four point charges +q,+q,+q and -q are placed at the four comers of a square, length of each side of which is a. Find the magnitude of the intensity of the electric field at the centre of the square.

The electric potential at a point (x,y,z) is given by V=-x^2y-xz^3+4 . Find the intensity of electic field vecE at that point.

Two point charges of +49 esu and +81 esu are placed at a separation of 100 cm in air. Determine the position of the neutral point in the electric fields of the two charges. What is the electric potential at the natural point?

UNITED BOOK HOUSE-MODEL PAPER SET-08-EXERCISE
  1. What are electromagnetic waves? Write down the relation connecting ele...

    Text Solution

    |

  2. A plane electromagnetic wave is moving along X-direction in free space...

    Text Solution

    |

  3. On the X-Y plane two point charges "+q and -q are placed at positions ...

    Text Solution

    |

  4. What is potential gradient? The electric potential is found to depend ...

    Text Solution

    |

  5. The parallel plate capacitors of capacitances C and 2C are connected i...

    Text Solution

    |

  6. Write down the Biot - Savart law in the vector form. Hence find the ma...

    Text Solution

    |

  7. What is the time taken by light to travel through a glass slab of thic...

    Text Solution

    |

  8. Write down the condition for minimum deviation in prism.

    Text Solution

    |

  9. Calculate the refracting angle of a prism (mu = sqrt2) if a ray of lig...

    Text Solution

    |

  10. In double slit experiment, the distance between two slits is 0.6 mm an...

    Text Solution

    |

  11. A short sighted person can see objects at 20cm from his eyes. What typ...

    Text Solution

    |

  12. What is threshold frequency in connecting with photoelectric effect?

    Text Solution

    |

  13. Will photoelectrons be emitted by copper plate of work function 4.4eV ...

    Text Solution

    |

  14. Show that for an electron laccelerated by a potential difference of V-...

    Text Solution

    |

  15. Show that kinetic energy of an electron in the first Bohr orbit is num...

    Text Solution

    |

  16. Wahat is a p-n junction diode? Draw the circuit diagram of a full wav...

    Text Solution

    |

  17. What is a photodiode? Draw theI-V characteristic curve of a photodiode...

    Text Solution

    |

  18. Prove that current density of a metallic conductor is directly proport...

    Text Solution

    |

  19. Define mobility of free electrons.

    Text Solution

    |

  20. The potential difference between the terminals of a cell, in an open c...

    Text Solution

    |