Home
Class 12
PHYSICS
A positively charged thin metal ring of ...

A positively charged thin metal ring of radius R is fixed in the xy plane with its centre at the origin O. A negatively charged particle P is released from rest at the point `(0, 0, z_0)` where `z_0gt0`. Then the motion of P is

A

periodic for all values of `Z_(0)` satisfying `0 lt Z_(0) lt oo`

B

simple harmonic for all values of `Z_(0)` satisfying `0 lt Z_(0) le R`

C

approximately simple harmonic provided `Z_(0) lt lt R`

D

such that P crosses O and continues to move along the negative Z-axis towards `Z =- oo`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PRACTICE PAPPER

    NCERT FINGERTIPS|Exercise Practice Paper 2|50 Videos

  • NUCLEI

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

A circular ring of radius R with uniform positive charge density lambda per unit length is located in the y z plane with its center at the origin O. A particle of mass m and positive charge q is projected from that point p( - sqrt(3) R, 0,0) on the negative x - axis directly toward O, with initial speed V. Find the smallest (nonzero) value of the speed such that the particle does not return to P ?

A circular ring of radius R with uniform positive charge density lambda per unit length is located in the y-z plane with its centre at the origin O. A particle of mass m and positive charge q is projected from the point P (Rsqrt3, 0, 0) on the positive x-axis directly towards O, with an initial speed v. Find the smallest (non-zero) value of the speed v such that the particle does not return to P.

A circular ring of mass M and radius R is placed in YZ plane with centre at origin. A particle of mass m is released from rest at a point x = 2R. Find the speed with which it will pass the centre of ring .

A circular ring lying in the x-y plane with its centre at the origin carries a uniformly distributed positive charge. The variation of the electric field E at the point (0,0,z) is correctly represented by the graph is

A circular coil with 100 turns and radius 20 cm is kept in Y-Z plane with its centre at the origin. Find the magnetic field at point (20 cm, 0, 0) if coil carries a current of 2.0 A.

A circular ring of radius R and uniform linear charge density +lamdaC//m are kept in x - y plane with its centre at the origin. The electric field at a point (0,0,R/sqrt(2)) is

Two equal negative charges are fixed at points and on y-axis. A positive charge Q is released from rest at the point on the x-axis. The charge Q will:

Two equal positive charges , Q , are fixed at points (0 , d) and (0 , -d) on the y -axis. A charged particle having charge -q and mass m is released from rest at point (d,0) on the x -axis . Discuss the motion of charged particle.

NCERT FINGERTIPS-PRACTICE PAPPER-Practice Paper 3
  1. When a pentavalent imputrity is added in Ge crystal then, what type of...

    Text Solution

    |

  2. A thin metal plate P is inserted between the plates of a parallel-plat...

    Text Solution

    |

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

    Text Solution

    |

  4. A voltmeter having a resistance of 1800 Omega employed to measure the ...

    Text Solution

    |

  5. A microammeter has as resistance of 100 Omega and full scale range of ...

    Text Solution

    |

  6. A 100 W bulb B(1) and two 60 W bulbs B(2) and B(3), are connected to a...

    Text Solution

    |

  7. A short conducting rod P of length 3.0 cm is placed parallel to an nea...

    Text Solution

    |

  8. A rectangular loop carrying a current i is situated near a long strai...

    Text Solution

    |

  9. An electron and a proton enter a magnetic field at right angles to the...

    Text Solution

    |

  10. A gang capacitor is formed by interlocking a number of plates as shown...

    Text Solution

    |

  11. A galvanometer of resistance 25Omega is connected to a battery of 2 vo...

    Text Solution

    |

  12. A rectangular coil of 20 turns and area of cross-section 25 cm^(2) has...

    Text Solution

    |

  13. For perfectly coupled coils, the coupling coefficient should be equal ...

    Text Solution

    |

  14. A 200 muF capacitor in series with a 100 Omega resistance is connected...

    Text Solution

    |

  15. The efficiency of a transformer is 90%. The transformer is rated for o...

    Text Solution

    |

  16. In an experiment to find focal length of a concave mirror, a graph is ...

    Text Solution

    |

  17. In a reflecting astronomical telescope, if the objetcive (a spherical ...

    Text Solution

    |

  18. Which one of the following is a possible nuclear reaction ?

    Text Solution

    |

  19. A 5 W source emits monochromatic light of wavelength 5000 Å. When plac...

    Text Solution

    |

  20. Calculate in how many months , (3/4)^(th) of the substance will dacay,...

    Text Solution

    |