Home
Class 12
PHYSICS
Two large conducting spheres carrying ch...

Two large conducting spheres carrying charges `Q_1 and Q_2` are brought close to each other. Is the magnitude of electrostatic force between them exactly given by `Q_1Q_2//4pi epsi_0 r^2`, where r is the distance between their centres ?

Text Solution

Verified by Experts

The Coulomb.s law is valid for point charges only. When the spheres are brought closer to each other, the interaction between the sphere will render non-uniformities in charge distribution and relation
`F = (Q_1 Q_2)/(4pi epsi_0 r^2)` no longer holds.
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    U-LIKE SERIES|Exercise CASE BASED/SOURCE-BASED INTEGRATED QUESTIONS|18 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    U-LIKE SERIES|Exercise MULTIPLE CHOICE QUESTIONS|35 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST|1 Videos

  • ELECTROMAGNETICE INDUCTION

    U-LIKE SERIES|Exercise Self Assessment Test Section -D|1 Videos

  • EXAMINATION PAPER 2020 (SOLVED)

    U-LIKE SERIES|Exercise SECTION D|6 Videos

Similar Questions

Explore conceptually related problems

Two large conduction spheres carrying charges Q_(1) and Q_(2) are brought close to each other. Is the magnitude of the force between them exactly given by Q_(1)Q_(2)//4piepsilon_(0)r^(2) . Where r is the distance between their centers.

Two conducting spheres of radii r_(1) and r_(2) having charges Q_(1) and Q_(2) respectively are connected to each other. There is

Two point charged bodies q_(1) = 3 muC , and q_(2) = 4 muC are separated by 2 m in air. Find the magnitude of electrostatic force between them.

Two points charges q _ 1 and q _2 are placed close to each other. What is the nature of force between the charges when q _ 1 lt 0, q _ 2 gt 0, q _ 1 lt 0, q _ 2 lt 0

A conducting sphere of radius R and carrying a charge Q is joined to an uncharged conducting sphere of radius 2R . The charge flowing between them will be

Two identical small conducting spheres having unequal positive charges q_1 and q_2 are separated by a distance r. If they are now made to touch each other and then separated again to the same edistance, the electrostatic formce between them in this case will be

Two conducting spheres of radii R each are given equal charges +Q and are kept such that their centre are at distance r (geR) . The force of attraction (F) between them is:

Two point sized identiacal sphere carrying charge q_(1) and q_(2) on them are separated by acertain distance the mutal force between them is F these two are brought in contant and kept at the same separation Now the force between them is F^(1) then . (F^(1))/(F)=((q_(1)+q_(2))^(2))/(4q_(1)q_(2))

Two concentric conducting spheres of radii R and 2R are crrying charges Q and -2Q , respectively. If the charge on inner sphere is doubled, the potetial differece between the two spheres will

U-LIKE SERIES-ELECTROSTATIC POTENTIAL AND CAPACITANCE -ADDITIONAL EXERCISES
  1. What is the area of the plates of a 2 F parallel plate capacitor, give...

    Text Solution

    |

  2. Obtain the equivalent capacitance of the network in Fig. For a 300 V s...

    Text Solution

    |

  3. The plates of a parallel plate capacitor have an area of 90 cm^2? each...

    Text Solution

    |

  4. The plates of a parallel plate capacitor have an area of 90 cm^2? each...

    Text Solution

    |

  5. A 4 muF capacitor is charged by a 200 V supply. It is then disconnecte...

    Text Solution

    |

  6. Show that the force on each plate of a parallel plate capacitor has a ...

    Text Solution

    |

  7. Two large conducting spheres carrying charges Q1 and Q2 are brought cl...

    Text Solution

    |

  8. If Coulomb's law involved 1//r^3 dependence (instead of 1//r^2), would...

    Text Solution

    |

  9. A small test charge is released at rest at a point in an electrostatic...

    Text Solution

    |

  10. What is the work done by the field of a nucleus in a complete circular...

    Text Solution

    |

  11. We know that electric field is discontinuous across the surface of a c...

    Text Solution

    |

  12. What meaning would you give to the capacitance of a single conductor ?

    Text Solution

    |

  13. Guess a possible reason why water has a much greater dielectric consta...

    Text Solution

    |

  14. A parallel plate capacitor is to be designed with a voltage rating 1 k...

    Text Solution

    |

  15. Describe schematically the equipotential surfaces corresponding to ...

    Text Solution

    |

  16. A small sphere of radius r1 and charge q1 is enclosed by a spherical s...

    Text Solution

    |

  17. The top of the atmosphere is at about 400 kV with respect to the surfa...

    Text Solution

    |

  18. A man fixes outside his house one evening a two metre high insulating ...

    Text Solution

    |

  19. The discharging current in the atmosphere due to the small conductivit...

    Text Solution

    |

  20. What are the forms of energy into which the electrical energy of the a...

    Text Solution

    |