Home
Class 12
PHYSICS
An electron moving at the speed of 10^(7...

An electron moving at the speed of `10^(7)` m/s , enters a magnetic field of induction 0.1 T at right angle to the velocity of electron . The radius of circular path followed by the electron is

A

0.57 cm

B

5.7 cm

C

0.57 mm

D

0.27 mm

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    NIKITA PUBLICATION|Exercise MCQs|431 Videos
  • ELECTROSTATICS

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|458 Videos

Similar Questions

Explore conceptually related problems

An electron enters in a magnetic held of induction 2 m T with velocity of 1.8 xx 10^(7) m/s . The radius of circular path is

An electron moving with a kinetic energy of 1.5 xx 10^(3) eV enters in a region of uniform magnetic field of induction 4 xx 10^(-3) Wb//m^(2) at right angles to the direction of motion of the electron . The radius of circular path of the electron in the magnetic field is

An electron travelling with a velocity vecV = 10^7 hati m//s enter a magnetic field of induction vecB = vec2J The force on electron is

An electron moving with kinetic energy 6xx10^(-16) joules enters a field of magnetic induction 6xx10^(-3)" weber//m^2 at right angle to its motion . The radius of its path is

An electron starts from rest and travels 0.9 m in an electric field of 200 V//m. After this , it enters a magnetic field at right angle to its direction of motion . If the radius of circular path of the electron is 9 cm, the magnetic field induction is (Given e= 1.6xx10^(-19) C, m=9xx10^(-31) g)

An electron travelloing with a velocity bar(V)=10^(7) hat(i)m//s enter a magnetic field of induction bar(B)=bar(2j) . The force on electron is

An electron of velocity 2.652 xx 10^(7) m/s enters a uniform magnetic field of direction of motion . The radius of its path is

An electron of mass 'm' is accelerated through a potential difference of V and then it enters a magnetic field of induction B . Normal to the lines of force. Then the radius of the circular path is

An electron moving with a velocity of 10^7ms^-1 enters a uniform magnetic field of 1T , along a direction parallel to the field. What would be its trajectory?

NIKITA PUBLICATION-ELECTRONS AND PHOTONS -MCQs
  1. The radius of circular path of an electron when subjected to a perpend...

    Text Solution

    |

  2. A charged particle is projected in a chamber with velocity v . It move...

    Text Solution

    |

  3. An electron moving at the speed of 10^(7) m/s , enters a magnetic fiel...

    Text Solution

    |

  4. An electron experiences a force equal to its weight, when placed in an...

    Text Solution

    |

  5. Mutually perpendicular electric and magnetic fields are given by E = 1...

    Text Solution

    |

  6. When light of 2.5 eV falls on a metal surface, maximum kinetic energy ...

    Text Solution

    |

  7. Electron moves in uniform magnetic field perpendicular to direction of...

    Text Solution

    |

  8. Photoelectric emission takes place

    Text Solution

    |

  9. An electron is accelerated from rest to potential V. the final velocit...

    Text Solution

    |

  10. An electron is projected in a perpendicular uniform magnetic field of ...

    Text Solution

    |

  11. The stopping potential of a given photoelectric device is depended on

    Text Solution

    |

  12. The radiations of 1 eV and 2.5 eV are incident on a metal having a wor...

    Text Solution

    |

  13. When temperature of a metal increases ,

    Text Solution

    |

  14. An electron is fired through a region of crossed electric and magneti...

    Text Solution

    |

  15. A charge q , and mass m , is fired perpendicular to a magnetic field (...

    Text Solution

    |

  16. The stopping potential of a photoelectric diode is 9 volts. e//m = 1.8...

    Text Solution

    |

  17. An electron enters in a magnetic held of induction 2 m T with velocity...

    Text Solution

    |

  18. Speed of an electron passing undeviated through a region of cross elec...

    Text Solution

    |

  19. In photoelectric effect if the intensity of light is doubled then maxi...

    Text Solution

    |

  20. Calcium plate has maximum possible radiation of wavelength 1 of 400 nm...

    Text Solution

    |