Home
Class 12
PHYSICS
An electron moving with a uniform veloci...

An electron moving with a uniform velocity along the positive `x`-direction enters a magnetic field directed along the positive `y`-direction. The force on the electron is directed along

A

E = 100 V/m in the z direction

B

E = 100 V/m, in the negative z direction

C

E = 100 V/m in the x direction

D

E = 100 V/m in the negative y direction

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FORCE

    RESNICK AND HALLIDAY|Exercise Practice Questions (More than one correct choice Type)|11 Videos
  • MAGNETIC FORCE

    RESNICK AND HALLIDAY|Exercise Practice Questions (Linked Comprehension)|2 Videos
  • MAGNETIC FORCE

    RESNICK AND HALLIDAY|Exercise Problems|49 Videos
  • MAGNETIC FIELDS DUE TO CURRENTS

    RESNICK AND HALLIDAY|Exercise Practice Question (Integer Type)|4 Videos
  • MOTION ALONG A STRAIGHT LINE

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS ( Integer Type )|3 Videos

Similar Questions

Explore conceptually related problems

An electron having a charged e moves with a velcoity v in postive x direction. A magnetic field acts on it in positive y direction. The force on the electron acts in (where outward direction is taken as positive z-axis)

An electron moving towards the east enters a magnetic field directed towards the north. The force on the electron will be directed

A proton is moving along the negative direction of X-axis in a magnetic field directed along the positive direction of Y-axis. The proton will be deflected along the negative direction of

A particle of mass m and charge q moves with a constant velocity v along the positive x- direction. It enters a region containing a uniform magnetic field B directed along the negative z direction, extending from x=a to x=b . The minimum value of v required so that the particle can just enter the region xgtb is

A coil of mass m and charge q moves with a constant velocity v along the positive x - direction . It enters a region containing a uniform magnetic field B directed along the negative z- direction , extending from x =a to x = b . The minimum value of v required so that the paRTICLE CAN JUST ENTER THE REGION XgtB IS

A squre loop of side a= 12 cm with its sides parallel to x, and y-axis is moved with velocity, V=8 cm/s in the positive x direction in a magnetic field along the positive z-direction. The field is neither uniform in space nor constant in time. It has a gradient delB//delx=-10^(-3) T//cm along the x-direction, and it is changing in time at the rate delB//delt=7T//sec in the loop if its resistance is R =4.5 Omega . Find the current .

RESNICK AND HALLIDAY-MAGNETIC FORCE-Practice Questions (Single correct Choice Type )
  1. If a bar magnet of pole strength m and magnetic moment M is cut equall...

    Text Solution

    |

  2. A compass needle whose magnetic moment is 60Am^2 points geographic nor...

    Text Solution

    |

  3. A magnetic field of 1600Am^-1 produces a magnetic flux of 2*4xx10^-5 w...

    Text Solution

    |

  4. Two short magnets placed along the same axis with their like poles fac...

    Text Solution

    |

  5. The time period of a freely suspended magnetic needle does not depend ...

    Text Solution

    |

  6. Which among the four chi versus T graphs shown in the following figure...

    Text Solution

    |

  7. An electron is travelling horizontally towards east. A magnetic field ...

    Text Solution

    |

  8. An electron and a proton are moving on straight parallel paths with sa...

    Text Solution

    |

  9. Assertion: If an electron, while coming vertically from outerspace, en...

    Text Solution

    |

  10. Cosmic rays (atomic nuclei stripped bare of their electrons) would con...

    Text Solution

    |

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

    Text Solution

    |

  12. A neutral particle at rest in a magnetic field decays into two charged...

    Text Solution

    |

  13. What is the direction of angular velocity of a rotating body ?

    Text Solution

    |

  14. An electron moving with a uniform velocity along the positive x-direct...

    Text Solution

    |

  15. Which of the following particle can be deflected by electric and magne...

    Text Solution

    |

  16. An alpha -particle and a proton are accelerated from rest thruogh the ...

    Text Solution

    |

  17. Three long straight parallel wires are kept as shown in figure. The wi...

    Text Solution

    |

  18. Which of the following setups can make a small conductor coil that is ...

    Text Solution

    |

  19. An electric current runs counter clockwise in a rectangular loop aroun...

    Text Solution

    |

  20. Two particles , each of mass m and charge q, are attached to the two ...

    Text Solution

    |