Home
Class 12
PHYSICS
In defining electric field due to a poin...

In defining electric field due to a point charge, the test charge has to be vanishingly small. How this condition can be justified, when we know that charge less than the on an electron or a proton is not possible?

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

Show that the electric field due to a point charge is conservative?

Find electric field due to solid sphere of charge at a point inside.

Find electric field due to solid sphere of charge at a point on the surface.

Find electric field due to solid sphere of charge q at a point outside.

Obtain expression for electric field due to a point charge

How does electric field at a point change with distance r from an infinitely long charged wire?

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

What is the value of charge on electron? Is a charge less than this value possible?

MODERN PUBLICATION-ELECTRIC FIELD-EXERCISE
  1. In defining electric field due to a point charge, the test charge has ...

    Text Solution

    |

  2. A ball of charge q is plaed in a hollow conductive uncharged sphere. A...

    Text Solution

    |

  3. A ball of charge q is plaed in a hollow conductive uncharged sphere. A...

    Text Solution

    |

  4. A sphere of charge + Q is fixed in position. A smaller sphere of charg...

    Text Solution

    |

  5. Graphically, represent the variation of electric field due to a point ...

    Text Solution

    |

  6. Graphically, represent the variation of electric field due to a point ...

    Text Solution

    |

  7. Graphically, represent the variation of electric field due to a point ...

    Text Solution

    |

  8. Three point charges, each having a charge +10 C are placed on the thre...

    Text Solution

    |

  9. Five point charges, each having a charge q are placed on the five cron...

    Text Solution

    |

  10. A small metal ball of mass m is suspended from a thread of length l be...

    Text Solution

    |

  11. A small metal ball of mass m is suspended from a thread of length l be...

    Text Solution

    |

  12. What is the use of the concept of electric field intensity?

    Text Solution

    |

  13. Establish the relation between electric field strength and force.

    Text Solution

    |

  14. Derive an expression for electric field intensity at a distance r from...

    Text Solution

    |

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

    Text Solution

    |

  16. What is an electric dipole? Define electric dipole moment and give its...

    Text Solution

    |

  17. Define the term electric dipole moment. Give its units Derive an expre...

    Text Solution

    |

  18. Define electric field intensity at a point. Give its S.I. units. Deriv...

    Text Solution

    |

  19. Define electric field intensity at a point. Give its S.I. units. Deriv...

    Text Solution

    |

  20. Define electric field intensity at a point. Give its S.I. units. Deriv...

    Text Solution

    |