Home
Class 12
PHYSICS
A stream of charged particles enters int...

A stream of charged particles enters into a region with crossed electric and magnetic fields as shown in the figure. On the other side is a screen with a hole that is right on the original path of the particles

A

No particle can get through the hole

B

All particles can get through the hole

C

Only positively charged particles with speed E/B can get through the hole

D

All particles with speed E/B can get through the hole

Text Solution

Verified by Experts

The correct Answer is:
C
Use `q (vecV + vecB) + qE = 0`
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECTS OF CURRENT

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Force and Torque on a Current Carrying Conductor )|51 Videos

  • MAGNETIC EFFECTS OF CURRENT

    ERRORLESS|Exercise PAST YEARS QUESTIONS |48 Videos

  • MAGNETIC EFFECTS OF CURRENT

    ERRORLESS|Exercise ASSERTION & REASON |18 Videos

  • ELECTROSTATICS

    ERRORLESS|Exercise ASSERTION & REASON|25 Videos

  • MAGNETISM

    ERRORLESS|Exercise Assertion and Reason|22 Videos

Similar Questions

Explore conceptually related problems

If a charged particle goes unaccelerated in a region containing electric and magnetic fields,

Force acting on a moving charged particle in a region of electric and magnetic fields is called

Motion of charged particle in combined electric & magnetic field

A particle enters the region of a uniform magnetic field as shown in figure. The path of the particle inside the field is shown by dark line. The particle is :

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

A charged particle moves undeflected in a region of crossed electric and magnetic fields. If the electric field is switched off, the particle has an initial acceleration a . If the magnetic field is switched off, instead of electric field, the particle will have an initial acceleration

A charged particle entering magnetic field obliquely will describe a path

A wide region of space has curved magnetic field lines as shown in the figure. A proton enters into the region as shown. Draw the path of the proton.

ERRORLESS-MAGNETIC EFFECTS OF CURRENT -NCERT BASED QUESTIONS (Motion of Charged Particle in Magnetic Field)
  1. An electron (mass =9.1xx10^(-31)kg, charge =1.6xx10^(-19)C) experience...

    Text Solution

    |

  2. An electron eneters the space between the plates of charged capacitor ...

    Text Solution

    |

  3. A stream of charged particles enters into a region with crossed electr...

    Text Solution

    |

  4. Two particles X and Y having equal charges, after being accelerated th...

    Text Solution

    |

  5. An electron has mass 9xx10^(-31)kg and change 1.6xx10^(-19)C is moving...

    Text Solution

    |

  6. A charged particle is moving in a circular orbit of radius 6 cm with a...

    Text Solution

    |

  7. An electron of mass m and charge q is travelling with a speed v along ...

    Text Solution

    |

  8. Two ions having masses in the ratio 1 : 1 and charges 1 : 2 are projec...

    Text Solution

    |

  9. Electrons move at right angles to a magnetic field of 1.5xx10^(-2) Tes...

    Text Solution

    |

  10. An electron, a proton, a deuteron and an alpha particle, each having t...

    Text Solution

    |

  11. Under the influence of a unifrom magnetic field a charged particle is...

    Text Solution

    |

  12. The operating magnetic field for accelerating protons in a cyclotron o...

    Text Solution

    |

  13. Following figure shows the path of an electron that passes through two...

    Text Solution

    |

  14. A proton of mass 1.67 xx 10^(-27) kg and charge 1.6 xx 10^(-19) C is p...

    Text Solution

    |

  15. The magnetic field in a certain region of space is given by B=8.35 xx1...

    Text Solution

    |

  16. A particle with charge q, moving with a momentum p, enters a uniform ...

    Text Solution

    |

  17. A proton accelarted by a potential differnce V = 500 kV fieles throug...

    Text Solution

    |

  18. A charged particle of charge q and mass m, gets deflected through an a...

    Text Solution

    |

  19. A point charge Q(=3xx10^(-12)C) rotates uniformly in a vertical circle...

    Text Solution

    |

  20. An electron and a proton, both having the same kinetic energy, enter a...

    Text Solution

    |