Home
Class 12
PHYSICS
Two charges 4 xx 10^(-8) C and -6 xx 10^...

Two charges `4 xx 10^(-8) C` and `-6 xx 10^(-8) C` are at points `A` and `B` respectively ,`50 cm` apart . The electrical potential due to them is zero on the line `AB` at a distance from `A` equal to

A

`10 cm`

B

`20 cm`

C

`30 cm`

D

`40 cm`

Text Solution

Verified by Experts

The correct Answer is:
2
`V_(P) = (1)/(4 pi in_(0)) [ (4 xx 10^(-8))/(x) - (6 xx 10^(-8))/(50 - x)]= 0`
`200 - 4x = 6x rArr x = 20 cm`
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    CP SINGH|Exercise Exercises|226 Videos

  • ELECTROMAGNETIC WAVES

    CP SINGH|Exercise EXERCISES|21 Videos

  • MAGNETIC FIELD

    CP SINGH|Exercise EXERCISE|77 Videos

Similar Questions

Explore conceptually related problems

Two charges +2xx10^(-9) C and -8xx10^(-9) C are placed 0.3 M apart in air. Find the point or p[oints where the electric field and potential is zero.

Two point charges q_(1) = 4 mu C and q_(2) = 9 mu C are placed 20 cm apart. The electric field due to them will be zero on the line joining them at distamce of

Two charges 10 muC and - 10 muC are placed at points A. and B separated by a distance of 10 cm. Find the electric. field at a point P on the perpendicular bisector of AB at. a distance of 12 cm from its middle point.

Two charges 3xx10^(-8) C and -2xx10^(-8)C are located 15 cm apart. At what point on the line joining the two charges is the electric potential zero ? Take the potential at infinity to be zero.

Two charges n 5xx10^(-8)C and -3xx10^(-8)C are located 16 cm apaart. At what points on the line joining the two charges is the electric potential zero ? Take the potential at infinity to be zero.

CP SINGH-ELECTROSTATICS-Exercises
  1. A and B are two points in an electric field . If the work done in carr...

    Text Solution

    |

  2. A particle of mass 'm' and charge 'q' is accelerated through a potenti...

    Text Solution

    |

  3. Two charges 4 xx 10^(-8) C and -6 xx 10^(-8) C are at points A and B r...

    Text Solution

    |

  4. Two positive charges of magnitude 4 C and 6 C are placed 10 cm apart ....

    Text Solution

    |

  5. Four point charges -Q, -q, 2q and 2Q are placed, one at each corner of...

    Text Solution

    |

  6. In an hydrogen atom, the electron revolves around the nucles in an orb...

    Text Solution

    |

  7. Four electric charges +q, +q, -q and -q are placed at the corners of a...

    Text Solution

    |

  8. A bullet of mass 2 gm is having a charge of 2 muc. Through what potent...

    Text Solution

    |

  9. Charges +q and -q are placed at points A and B respectively which are ...

    Text Solution

    |

  10. As per this diagram a point charge +q is placed at the origin O. Work ...

    Text Solution

    |

  11. A charge +q is fixed at each of the points x=x0, x=3x0, x=5x0,…………x=oo...

    Text Solution

    |

  12. A charge Q is uniformly distributed only on the fourths portion of a r...

    Text Solution

    |

  13. A ring of radius a contains a charge q distributed. uniformly ober its...

    Text Solution

    |

  14. In the following arrangement

    Text Solution

    |

  15. Two identical thin ring, each of radius R meters, are coaxially placed...

    Text Solution

    |

  16. Two fixed charges -2 Q and Q are located at the points with coordinat...

    Text Solution

    |

  17. The work done in carrying a charge Q(1) once round a circle of radius ...

    Text Solution

    |

  18. Two equal positive charges are kept at points A and B. The electric po...

    Text Solution

    |

  19. In the following diagram the work done in moving a point charge from p...

    Text Solution

    |

  20. Two equal charges q are placed at a distance of 2a and a third charge ...

    Text Solution

    |