Home
Class 12
PHYSICS
A charged particle q is shot towards ano...

A charged particle q is shot towards another charged particle Q which is fixed, with a speed v. It approaches Q upto a closest distance r and then returns. If q were given a speed 2v, the closest distances of approach would be

A

r

B

2r

C

`r//2`

D

`r//4`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    PATHFINDER|Exercise QUESTION BANK|50 Videos

  • MAGNETIC EFFECT OF CURRENT AND ELECTROMAGNETISM-I,II AND III

    PATHFINDER|Exercise QUESTION BANK|213 Videos

Similar Questions

Explore conceptually related problems

A charged particle q is thrown with a velocity v towards another charged particle Q at rest. It approaches Q up to a closest distance r and then returns. If q is thrown with a velocity 2v, what should be the closest distance of approach?

q charge is projected towards a charge Q (fixed) . With the velocity v for the minimum distance r. What is the distance if the velocity of projection be 2V?

A particle of mass M and charge q, initially at rest, accelerated by a uniform electric field E through a distance D and is then allowed to approach a fixed static charge Q of the same sign. The distance of the closest approach of the charge q will then be

A charged particle of mass m_(1) and charge q_(1) is revolving in a cricle of radius r. another charged particle of charge q_(2) and mass m_(2) is situated at the centre of the circle. If the velocity and time period of the revolving particle be v and T respectively, then,

A point charge -q is carried from a point A to anther point B on the axis of a charged ring of radius r carrying a charge +q. If the point A is at a distance 4/3 r from the centre of the ring and the point B is 3/4 r from the centre but on the opposite side, what is the net work that need to be done for this

One motor launch A is exactly 1 km north of another launch B. Both launches start from rest , at the same time, with an acceleration of 10 cm*s^(-2) . The launch A proceeds towards east and B towards north. Find the distance of closest approach between them and the time taken to reach that distance.

A circle of radius unity is centered at thet origin. Two particles tart moving at the same time from the point (1, 0) and move around the circle in opposite direction. One of the particle moves anticlockwise with constant speed v and the other moves clockwise with constant speed 3v . After leaving (1, 0) , the two particles meet first at a point P, and continue until they meet next at point Q . The coordinates of the point Q are

PATHFINDER-ELECTROSTATICS-I, II AND III-QUESTION BANK
  1. There are four concentric shells A, B, C and D of radii a, 2a, 3a and ...

    Text Solution

    |

  2. The variation of potential with distance r from a fixed point-is shown...

    Text Solution

    |

  3. A charged particle q is shot towards another charged particle Q which ...

    Text Solution

    |

  4. A charge +Q is uniformly distributed in a spherical volume of radius ...

    Text Solution

    |

  5. A ring of radius R carries a charge +q. A test charge -q0 is release...

    Text Solution

    |

  6. Two conducting, concentric, hollow spheres A and B have radii a and b ...

    Text Solution

    |

  7. Two thin wire rings each having a radius R are placed at a distance d ...

    Text Solution

    |

  8. The potential at a point x (measured in pm) due to some charges situat...

    Text Solution

    |

  9. Two equal point charges are fixed at x=-a and x=+a on the x-axis. A...

    Text Solution

    |

  10. A wheel having mass m has charges +q and -q on diametrically opposit...

    Text Solution

    |

  11. The potential field depends on x and y coordinates as V=(x^2-y^2) Corr...

    Text Solution

    |

  12. A non-conducting ring of radius 0.5m carries a total charge of 1.11xx...

    Text Solution

    |

  13. Positive and negative point charges of equal magnitude are kept at (0,...

    Text Solution

    |

  14. A dipole of 2muC charges each, consists of the positive charge at the...

    Text Solution

    |

  15. Two point charges (q) and (-q) are separated by a distance 2l.. The f...

    Text Solution

    |

  16. The figure shows the electric field lines in the vicinity of two point...

    Text Solution

    |

  17. A thick shell with inner radius R and outer radius 3R has a uniform vo...

    Text Solution

    |

  18. Find the capacitance of a system of three parallel plates each of area...

    Text Solution

    |

  19. The resultant capacity between the points A and B in the following cir...

    Text Solution

    |

  20. A capacitor of capacitance C is charged to a potential difference V0....

    Text Solution

    |