Home
Class 12
PHYSICS
A charge having magnitude Q is divided i...

A charge having magnitude Q is divided into two parts q and (Q-q) . If the two parts exerts a maximum force of repulsion on each other, then find the ratio Q/q.

A

`1:2`

B

`2:1`

C

`1:4`

D

`4:1`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TEXUAL QUESTIONS

    MODERN PUBLICATION|Exercise EXERCISE|195 Videos

  • TEXTUAL QUESTIONS

    MODERN PUBLICATION|Exercise EXERCISE|507 Videos

  • UNIT TEST -06

    MODERN PUBLICATION|Exercise EXERCISE|461 Videos

Similar Questions

Explore conceptually related problems

A mass is divided into two parts so that the force of gravitation between them is maximum. Find the ratio of the masses of the two parts.

The force acting between two point charges q_1 and q_2 kept at the same distance apart in air is attractive or repulsive when q_1q_2 > 0 .

The force acting between two point charges q_1 and q_2 kept at the same distance apart in air is attractive or repulsive when q_1q_2<0 .

Three charges -q, Q and -q are placed at equal distances on a striaght line. If the potential energy of the system of three charges is zero, then what is the ratio of Q:q?

Lorentz Force: If a charge +q is moving in an electric field E, it experiences a force qE called Lorentz electric force.If the charge q is moving in a magnetic field vecB , it experiences a force (vecvxxvecB) called Lorentz magnetic force. If charge q is moving in a n electric field E as well as in magnetic field vecB simultaneously, the total force experience by the charge is the sum of these two forces and is called total Lorentz force. If vecv and vecB are inclined to each other, the charged particle moves in a

In figure, two positive charges q_2 and q_3 fixed along the y-axis, exert a net electric force in the + x direction on a charge q_1 fixed along the x-axis. If a positive charge Q is added at (x,0), the force of q_1 .

Two parallel metal plates having charge +Q and -Q face each other at a certain distance between them. If the plates are now dipped in kerosene oil tank, the uniform electric field between the plates will

MODERN PUBLICATION-TEXUAL QUESTIONS -EXERCISE
  1. Two points charges of +3muC and +8muC repel each other with a force of...

    Text Solution

    |

  2. Force between the two stationary charges, when placed in freespace is ...

    Text Solution

    |

  3. A charge having magnitude Q is divided into two parts q and (Q-q) . If...

    Text Solution

    |

  4. A charge q1 exerts some force on a second charge q2. A third charge q3...

    Text Solution

    |

  5. Five balls numbered 1,2,3,4,and 5 are suspended using separated thread...

    Text Solution

    |

  6. Two charges each of +q units are placed along a line. A third chare of...

    Text Solution

    |

  7. Two equal and similar charges are placed along a straight line. A thir...

    Text Solution

    |

  8. Two equal and similar charges are placed along a straight line. A thir...

    Text Solution

    |

  9. A stationary charges produces.

    Text Solution

    |

  10. A proton and an electron are placed in a uniform electric field . Then

    Text Solution

    |

  11. In SI. Unit of electric field is:

    Text Solution

    |

  12. Determine the magnitude of an electric field that will balance the wei...

    Text Solution

    |

  13. A dipole of electric dipole moment vecP is placed in a uniform electri...

    Text Solution

    |

  14. A positivity charges ball hangs from a silk thread Electric filed at a...

    Text Solution

    |

  15. A cylinder of length L and radius R is placed in a uniform electric fi...

    Text Solution

    |

  16. Gauss's theorem

    Text Solution

    |

  17. Electric field varies as r^-3 due to

    Text Solution

    |

  18. Electric field varies as r^-1 due to

    Text Solution

    |

  19. The electric field inside a spherical shell of uniform surface charge ...

    Text Solution

    |

  20. A spherical shell of radius R has a charge +Q units. The electric fiel...

    Text Solution

    |