Home
Class 12
PHYSICS
Under the influence of the Coulomb field...

Under the influence of the Coulomb field of charge `+Q`, a charge `-q` is moving around it in an elliptical orbit. Find out the correct statement (s)

A

The angular momentum of the charge -q is constant

B

The linear mometum of the charge -q constant

C

The angular velocity of the charge -q is constant

D

The linear speed of the charge -q is constant

Text Solution

Verified by Experts

The correct Answer is:
A
Net torque on (-q) about a poin (say P) lying over +Q is zero. Therefore, angular momentum of (-q) about point P should remain constatn.
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    VMC MODULES ENGLISH|Exercise JEE MAIN|65 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT

    VMC MODULES ENGLISH|Exercise IMPECCABLE|52 Videos

  • ENERGY & MOMENTUM

    VMC MODULES ENGLISH|Exercise JEE ADVANCE (ARCHIVE) - TRUE/FALSE TYPE|1 Videos

Similar Questions

Explore conceptually related problems

Which of the following statements are correct about a satellite moving around a planet in an elliptical orbit ?

Under the influence of a unifrom magnetic field a charged particle is moving on a circle of radius R with Constnant speed v . The time period of the motion

A positive point charge +Q is fixed in space .A negative point charge -q of mass m revolves around a fixed charge in elliptical orbits .The fixed charge +Q is at one focus of the ellipse.The only force acting on negative charge is the electrostatic force due to positive charge is the electrostatic force due to positive charge.Then which of the following statement is true

A thin conductinrod AB is introduced in between the two point charges +q_(1) and q_(2) as shown in figure.For this situtation mark the correct statement (s).

In between two point charges a conducting spherical shell having charge Q is placed as shown in the diagram. Assuming all charges to be positive, mark out the correct statement.

A charged particle having charge q, is moving at right angles to a magnetic field. The quantity which is varying for it is-

A uniformly charged ring having total charge Q and of radius R is fixed in such a way so that plane of the ring is horizontal. A charged particle of charge q and mass m is in equilibrium at any point lying on y -axis under the combined forces of electric field and earth's gravitational field. Choose the correct statements

In a hypothetical system , a partical of mass m and charge -3 q is moving around a very heavy partical chaRGE q . Assume that Bohr's model is applicable to this system , then velocuity of mass m in the first orbit is

A toy car with charge q moves on a frictionless horizontal plane surface under the influence of a uniform electric field vec E . Due to the force q vec E , its velocity increases from 0 to 6 m//s in one second duration. At that instant the direction of field is reversed. The car continues to move for two more seconds under the influence of this field. The average velocity and the average speed of the toy car between 0 to 3 seconds are respectively.

A charge particle of charge q and mass m is moving with velocity v as shown in fig In a uniform magnetic field B along -ve z-direction.Select the correct alternative (s).

VMC MODULES ENGLISH-ELECTROSTATICS-JEE Advanced (Archive)
  1. Statement I: For practical purposes, the earth is used as a refrence a...

    Text Solution

    |

  2. Consider a system of three charges q//3, q//3, and -2q//3 placed at po...

    Text Solution

    |

  3. Under the influence of the Coulomb field of charge +Q, a charge -q is ...

    Text Solution

    |

  4. A disk of radius a//4 having a uniformly distributed charge 6 C is pla...

    Text Solution

    |

  5. Three concentric metallic spherical shells of radii R, 2R, 3R are give...

    Text Solution

    |

  6. A tiny spherical oil drop carrying a net charge q is balanced in still...

    Text Solution

    |

  7. A uniformly charged thin spherical shell of radius R carries uniform s...

    Text Solution

    |

  8. Consider an electric field vecE = E0hat x, where E0 is a constant. The...

    Text Solution

    |

  9. A wooden block performs SHM on a frictionless surface with frequency v...

    Text Solution

    |

  10. Two large vertical and parallel metal plates having a separation of 1 ...

    Text Solution

    |

  11. Consider a thin spherical shell of radius R with its centre at the ori...

    Text Solution

    |

  12. Charges Q, 2Q and 4Q are uniformly distributed in three dielectric sol...

    Text Solution

    |

  13. Let E1(r), E2(r) and E3(r) be the respectively electric field at a dis...

    Text Solution

    |

  14. The figure below depict two situations in which two infinitely long st...

    Text Solution

    |

  15. Consider a uniform spherical charge distribution of radius R(1) centr...

    Text Solution

    |

  16. A spherical shell of radius R has a uniformly distributed charge ,then...

    Text Solution

    |

  17. A uniform electric field pointing in positive x-direction exists in a ...

    Text Solution

    |

  18. A nonconducting solid sphere of radius R is uniformly charged. The mag...

    Text Solution

    |

  19. Two point charges +q and -q are held fixed at (-a,0) and (a,0) respect...

    Text Solution

    |

  20. A positively charged thin metal ring of radius R is fixed in the xy pl...

    Text Solution

    |