Home
Class 12
PHYSICS
When electron revolves around nucleus in...

When electron revolves around nucleus in a circular orbit, its orbital magnetic moment is ______

A

`vecmu_(l)=(e/(2m_(e)))vecl`

B

`vecmu_(l)=-(e/(2m_(e)))vecl`

C

`vecmu_(l)=-(e/(2m_(e)))vecrv`

D

`vecmu_(l)=-(e/(2m_(e)))m_(e)vecv`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    KUMAR PRAKASHAN|Exercise SECTION D (MCQs ASKED IN COMPETITIVE EXAMS)|34 Videos

  • MOVING CHARGES AND MAGNETISM

    KUMAR PRAKASHAN|Exercise SECTION C (LONG ANSWER TYPE QUESTIONS)|7 Videos

  • MAGNETISM AND MATTER

    KUMAR PRAKASHAN|Exercise SECTION D Multiple Choice Questions (MCQs) (MCQs asked in Competitive Exams) MCQs asked in Board Exam and GUJCET|7 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    KUMAR PRAKASHAN|Exercise SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs ASKED IN COMPETITIVE EXAMS)|142 Videos

Similar Questions

Explore conceptually related problems

In the Bohr's model of hy drogen atom, the electron moves around the nucleus in a circular orbit of radius 5xx10^(-11) m . Its time period is 1.5xx10^(-16)s . The current associated with the electron motion is:-

In an atom, two electrons move around nucleus in circular orbits of radii ( R) and ( 4R) . The ratio of the time taken by them to complete one revolution is :

In the hydrogen atom, an electron revolve around a proton in a circular orbit of radiu 0.53 A. The radial acceleration and the angular velocity of the electron are......and…………. (m_(e) = 9.1 xx 10^(-31) kg, e = 1.6 xx 10^(-19) C)

An electron in an atom is revolving round the nucleus in a circular orbit of radius 5.3 xx 10^(-11) m, with a speed of 2 xx 10^(6) ms^(-1) . The resultant orbital magnetic moment and angular momentum of the electron is ...... Take charge of electron = 1.6 xx 10^(-19) C , mass of electron = 9.1 xx 10^(-31) kg.

A small satellite revolves around a heavy planet in a circular orbit. At certain point in its orbit a sharp impulse acts on it and instantaneously increases its kinetic energy to 'k' (lt2) times without change in its direction of motion show that in its subsequent motion the ratio of its maximum and minimum distance from the planet is (k)/(2-k) assuming the mass of the satellite is negligibly small as compared to that of the planet.

Charge q_2 of mass m revolves around a stationary charge q_1 in a circular orbit of radius r. The orbital periodic time of q_2 would be ........

A planet is revolving around the Sun in an elliptical orbit. Its closest distance from the sun is r_(min) . The farthest distance from the sun is r_(max) if the orbital angular velocity of the planet when it is nearest to the Sun omega then the orbital angular velocity at the point when it i at the farthest distanec from the sun is

For different satellite revolving around a planet in different circular orbit, which of the following shows the relation between the angular momentum L and the orbital radius r?

Value of gyromagnetic ratio for an orbital electron is ________

KUMAR PRAKASHAN-MOVING CHARGES AND MAGNETISM-SECTION D (MULTIPLE CHOICE QUESTIONS)
  1. In phenomenon, toroid is being used.

    Text Solution

    |

  2. Magnetic field at the centre of circular loop of radius R is B. Magnet...

    Text Solution

    |

  3. When electron revolves around nucleus in a circular orbit, its orbital...

    Text Solution

    |

  4. Value of gyromagnetic ratio for an orbital electron is

    Text Solution

    |

  5. Which of the following atoms has permanent electric dipole moment zero...

    Text Solution

    |

  6. A current carrying loop is placed in a uniform magnetic field. The tor...

    Text Solution

    |

  7. A conducting wire of 2m length is used to form a circular loop. If it ...

    Text Solution

    |

  8. A rectrangular coil 20cmxx20cm has 100 turns and carries a current of ...

    Text Solution

    |

  9. A current carring small loop behaves like a small magnet. If A be its ...

    Text Solution

    |

  10. Dipole moment of coil is 2hati+3hatj+5hatk. If this coil is placed in ...

    Text Solution

    |

  11. A circular coil of radius 4 cm and of 20 turns carries a current of 3 ...

    Text Solution

    |

  12. An electron moves with a constant speed v along a circle of radius r. ...

    Text Solution

    |

  13. A circular coil having N turns is made from a wire L meter long. If a ...

    Text Solution

    |

  14. can measure small current and small voltage both.

    Text Solution

    |

  15. has maximum resistance.

    Text Solution

    |

  16. Why small soft iron cylinder is placed at the axis of the coil in galv...

    Text Solution

    |

  17. What should be the resistance of an ideal ammeter ?

    Text Solution

    |

  18. When series resistance is increased, range of voltmeter

    Text Solution

    |

  19. When shunt connected to galvanometer has the value equal to resistance...

    Text Solution

    |

  20. Which of following statements is wrong?

    Text Solution

    |