Home
Class 12
PHYSICS
Three charges Q, +q and +q are placed at...

Three charges Q, +q and +q are placed at the vertices of a right angled isosceles triangle as shown in figure. If the net electrostatic energy of the configuration is zero, then Q is equal to

A

`(-q)/(1 + sqrt2)`

B

`(-2q)/(2 + sqrt2)`

C

`-2q`

D

`+q`

Text Solution

Verified by Experts

The correct Answer is:
B
`(1)/(4pi in_(0)) ((q_(1) q_(2))/(r_(12)) + (q_(2) q_(3))/(r_(23)) + (q_(3)q_(1))/(r_(13)))= 0`
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    NARAYNA|Exercise Exercise-2(C.W)|53 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    NARAYNA|Exercise EXERCISE -2 (H.W)|50 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    NARAYNA|Exercise Exercise -1 (C.W)|44 Videos

  • ELECTROMAGNETIC WAVES

    NARAYNA|Exercise EXERCISE -4|15 Videos

  • ELECTROSTATICS AND GAUSS LAW

    NARAYNA|Exercise Intergers type question|11 Videos

Similar Questions

Explore conceptually related problems

Three charges Q, +q and +q are placed at the vertices of a right-angle isosceles triangle as shown in Fig. The net electrostatic energy of the configuration is zero if Q is equal to :-

Three charges Q, +q and +q are placed at the vertices of a right-angled isosceles triangle as shown. The net electrostatic energy of the configuration is zero if Q is equal to

Three charges Q, +q and +q are placed at the vertices of a right angle triangle (isoscles triangle) as shown. The net electrostatic energy of the configuration is zero, if Q is equal to :

Three charge +q, -q , and +2q are placed at the vertices of a right angled triangle (isosceles triangle)as shown. The net electrostatic energy of the configuration is:

Three charges Q+q and + q are placed at the vertices of a right -angle isosceles triangle as shown below. The net eletrostatic energy of the configuration is zero if the value of Q is :

Three charges Q, (+q) and (+q) are placed at the vertices of an equilateral triangle of side l as shown in the figure. It the net electrostatic energy of the system is zero, then Q is equal to

Three charges Q_0 - q and q are placed at the vertices of an isosceles right angle triangle as in the future. The net electrostatic potential energy is zero if Q_0 is equal to

Three charges +q, +q and -2q are placed at the vertices of an equilareral triagle. What is the dipole moment of the system?

Three charges are placed at the vertex of an equilateral triangle as shown in figure. The value of Q, for which the electrostatic potential energy of the system is zero, is

NARAYNA-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Exercise -1 (H.W)
  1. Two positive point charges of 12 mu C and 8 mu C are 10 cm apart. The ...

    Text Solution

    |

  2. Two charges of magnitude 5 nC and -2 nC are placed at points (2cm,0,0...

    Text Solution

    |

  3. Three charges Q, +q and +q are placed at the vertices of a right angle...

    Text Solution

    |

  4. An electric dipole has the magnitude of its charge as q and its dipole...

    Text Solution

    |

  5. An electric dipole of moment vecp is placed normal to the lines of for...

    Text Solution

    |

  6. An insulated charged conducting sphere of radius 5cm has a potential o...

    Text Solution

    |

  7. Two conducting spheres of radii 5 cm and 10 cm are given a charge of 1...

    Text Solution

    |

  8. The electric potential on the surface of a sphere of radius R due to a...

    Text Solution

    |

  9. A soap bubble is charged to a potential of 16V. Its radius is then dou...

    Text Solution

    |

  10. The charge stored in a capacitor is 20 mu C and the potential differen...

    Text Solution

    |

  11. The oil condenser has a capacity of 100 muF .The oil has dielectric c...

    Text Solution

    |

  12. A dielectric of thickness 5cm and dielectric constant 10 is introduced...

    Text Solution

    |

  13. v36

    Text Solution

    |

  14. The ratio of the resultant capacities when three capacitors of 2muF, 4...

    Text Solution

    |

  15. A condenser A of capacity 4muF has a charge 20muC and another condense...

    Text Solution

    |

  16. A capacitor of 30 mu F charged to 100V is connected in parallel to c...

    Text Solution

    |

  17. The equivalent capacity between the points 'A' and 'B' in the followin...

    Text Solution

    |

  18. Two capacitors with capacities C(1) and C(2) ,are charged to potenti...

    Text Solution

    |

  19. The equivalent capacitance between P and Q of the given figure is (the...

    Text Solution

    |

  20. The resultant capacity between the points P and Q of the given figure ...

    Text Solution

    |