Home
Class 12
PHYSICS
An electron having mass 'm' and kinetic ...

An electron having mass 'm' and kinetic energy E enter in uniform magnetic field B perpendicularly, then its frequency will be : -

A

`(eE)/(qvB)`

B

`(2pim)/(eB)`

C

`(eB)/(2pim)`

D

`(2m)/(eBE)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGE AND MAGNESIUM

    AAKASH INSTITUTE|Exercise SECTION D|16 Videos
  • MOVING CHARGE AND MAGNESIUM

    AAKASH INSTITUTE|Exercise SECTION B|25 Videos
  • MOTION IN STRAIGHT LINE

    AAKASH INSTITUTE|Exercise Assignment (SECTION - J)|2 Videos
  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Assignment Section J (Aakash Challengers Questions)|5 Videos

Similar Questions

Explore conceptually related problems

An electron and a proton have equal kinetic energies. They enter in a magnetic field perpendicularly, then

A charged particle enters a uniform magnetic field perpendicular to it. The magnetic field

A proton of mass m and charge q is moving in a plane with kinetic energy E. if there exists a uniform magnetic field B, perpendicular to the plane motion. The proton will move in a circular path of radius

A proton and an a-particle enter in a uniform magnetic field perpendicularly with same speed. The will b ratio of time periods of both particle (T_(p)/(T_(alpha)) will be

A photon and an alpha particle having same kinetic energies are entering in a uniform magnetic field normal to as shown in figure. The ratio of time to return on the same side is

AAKASH INSTITUTE-MOVING CHARGE AND MAGNESIUM-SECTION C
  1. A beam of electrons passes underfected throgh unifromly perpendicula...

    Text Solution

    |

  2. In mass spectrometer used for measuring the masses of ions, the ion...

    Text Solution

    |

  3. When a charged particle moving with velocity vec(V) is subjected to a...

    Text Solution

    |

  4. Two circular coils 1 and 2 are made from the same wire but the radiu...

    Text Solution

    |

  5. A coil in the shape of an equilateral triangle of side l is suspended ...

    Text Solution

    |

  6. A very long straight wire carries a current I. At the instant when a c...

    Text Solution

    |

  7. An electron moves in a circular orbit with a uniform speed v.It produc...

    Text Solution

    |

  8. A beam of electron is moving with constant velocity in a region having...

    Text Solution

    |

  9. A 10eV electron is circulating in a plane at right angles to a uniform...

    Text Solution

    |

  10. A positively charged particle moving due east enters a region of unifo...

    Text Solution

    |

  11. An electron having mass 'm' and kinetic energy E enter in uniform magn...

    Text Solution

    |

  12. A positive charge particle with charge q is moving with speed v in a r...

    Text Solution

    |

  13. The angle field of given length of wire for single turn coil at its ce...

    Text Solution

    |

  14. The magnetic field dvecB due to a small current element dvecl at a dis...

    Text Solution

    |

  15. Two equal electric currents are flowing perpendicular to each other as...

    Text Solution

    |

  16. To convert a galvanometer into a voltmeter, one should connect a

    Text Solution

    |

  17. A galvanometer having a coil resistance of 60 Omega shows full scale...

    Text Solution

    |

  18. A straight wire of diameter 0.5 mm carrying a current of 1 A is replac...

    Text Solution

    |

  19. A closely wound solenoid of 2000 turns and area of cross-section 1.5xx...

    Text Solution

    |

  20. In a ammeter 0.2% of main current passes through the galvanometer. If ...

    Text Solution

    |