Home
Class 12
PHYSICS
Two point charges q and -q is placed at ...

Two point charges q and -q is placed at a distance 2a apart.Calculate the electric field at a point P situated at a distance r along the perpendicular bisector of the line joining the charges. What is the electric field when `r gtgt a` ? Also, give the direction of electric field W.r.t. electric dipole moment? .

Promotional Banner

Topper's Solved these Questions

  • ELECTRIC FIELD

    MODERN PUBLICATION|Exercise EXERCISE|95 Videos

  • ELECTRIC CURRENT. RESISTANCE AND E.M.F

    MODERN PUBLICATION|Exercise EXERCISE|64 Videos

  • ELECTRIC POTENTIAL

    MODERN PUBLICATION|Exercise EXERCISE|38 Videos

Similar Questions

Explore conceptually related problems

Two point charges q and-q are placed at a distance 2a part. Calculate the electric field at a point P situated at a distance r along the axial line of an electric dipole. What is the electric field when r>>a ? Also, give the direction of elctric field w.r.t. electric dipole.

What is the direction of electric field w.r.t. and equipotential surface?

Two point charges of 2muC but opposte in sign are placed 10 cm apart. Calculate the electric field at a point distant 10 cm from the mid point on the axial line of the dipole.

How does electric field at a point change with distance r from an infinite thin sheet of charge?

Two point charges +Q_1 and Q_2 are placed r distance apart. Obtain the expression for the amount of work done to place a third charge Q_3 at the midpoint of the line joining the two charges.

MODERN PUBLICATION-ELECTRIC FIELD-EXERCISE
  1. Define electric field intensity at a point. Give its S.I. units. Deriv...

    Text Solution

    |

  2. Obtain an expression for electric field intensity at any point on equi...

    Text Solution

    |

  3. Two point charges q and -q is placed at a distance 2a apart.Calculate ...

    Text Solution

    |

  4. Deduce an expression for the electric field vecE due to a system of tw...

    Text Solution

    |

  5. Find the electric field intensity at any point on the axis of a unifor...

    Text Solution

    |

  6. Find the electric field intensity at any point on the axis of a unifor...

    Text Solution

    |

  7. A crcular loop of charge is placed in YZ-plane with its centre at the ...

    Text Solution

    |

  8. A thin circular ring of radius r is charged uniformaly so that its lin...

    Text Solution

    |

  9. Derive an expression for torque experiencedby electric dipole in a uni...

    Text Solution

    |

  10. Derive an expression for torque experiencedby electric dipole in a uni...

    Text Solution

    |

  11. Draw a labelled diagram showingt an electric dipole making an angle th...

    Text Solution

    |

  12. A dipole is placed in a uniform electric field. What is the net force ...

    Text Solution

    |

  13. An electric dipole is held in a uniform electric field. The dipole is ...

    Text Solution

    |

  14. An electric dipole is held in a uniform electric field Using suitable ...

    Text Solution

    |

  15. Draw a labelled diagram showingt an electric dipole making an angle th...

    Text Solution

    |

  16. In the electric field show in the figure the electric field lines ...

    Text Solution

    |

  17. Calculate the magnitude and direction of the electric field. Which kee...

    Text Solution

    |

  18. A water particle of mass 10 mg and having a charge of 1.5 xx 10^-6C st...

    Text Solution

    |

  19. An electron above the earth is balanced by the gravitational force and...

    Text Solution

    |

  20. How many electrons should be removed from a coin of mass 1.6 g, so tha...

    Text Solution

    |