Home
Class 12
PHYSICS
when a proton is released from rest in a...

when a proton is released from rest in a room, it starts with an initial acceleration `a_0` towards west . When it is projected towards north with a speed `v_0,` it moves with an initial acceleration `3a_0` towards west. Find the elecrtic field and the minimum possible magnetic field in the room.

A

`(ma_(0))/(e)"west",(2ma_(0))/(ev_(0))"down"`

B

`(ma_(0))/(e)"east",(3ma_(0))/(ev_(0))"up"`

C

`(ma_(0))/(e)"east",(3ma_(0))/(ev_(0))"down"`

D

`(ma_(0))/(e)"west",(2ma_(0))/(ev_(0))"up"`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    AAKASH SERIES|Exercise EXERCISE-IB|71 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH SERIES|Exercise EXERCISE-II|79 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH SERIES|Exercise EXERCISE-III|49 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise very Short answer type question|15 Videos

  • NUCLEAR PHYSICS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE PRACTICE SHEET (ADVANCED) Integer Type Questions|3 Videos

Similar Questions

Explore conceptually related problems

When a proton is released from rest in a room, it starts with an initial acceleration a_(0) towards west. When it is projected towards north with a speed v_(0) it moves with an initial accelaration 3a_(0) towards west. The electric and the maximum possible magnetic field in the room (i) (ma_(0))/(e) , towards west (ii) (2 ma_(0))/(ev_(0)) , downward (iii) (ma_(0))/(e) , towards east (iv) (2ma_(0))/(ev_(0)) , upward

When a proton is released from rest in a room, it starts with an initial acceleration a_(0) towards west. When it is projected towards north with a speed v_(0) it moves with an initial acceleration 3a_(0) towards west. The electric and magnetic fields in the room are:

A ball of density ais released from rest from the centre of an accelerating sealed cubical vessel completely filled with a liquid of density rho . If the trough moves with a horizontal acceleration veca_(0) find the initial acceleration of the ball.

The rectangualr wire- frame, shown in has a width d, mass m, resistance R and a large length. A uniform magnetic field B exists to the left of the frame. A constant force F starts pushing the frame into the magnetic field at t =0. (a) Find the acceleration of the frame when its speed has increased to v. (b) Show that after some time the frame will move with a constant velocity till the whole frame enters into the magnetic field. find this velocity v_0 . (c) show that the velocity at tiem t is given by v= v_0(1 - e^(-Ft/mv_0) .

A particle starts from rest at time t=0 and moves on a straight line with acceleration as plotted in fig. The speed of the particle will be maximum after time.

A bus starting from rest moves with a uniform acceleration of 0.1 m//s^(2) for 2 minutes. Find (a) the speed acquired, (b) the distance travelled.

The jet plane starts from rest at s =0 and is subjected to the acceleration shown. Determine the speed of the plane when it has travelled 60 m.

A particle has a velocity u towards east at t=0 . Its acceleration is towards west and is constant. Let x_A and x_B be the magnitude of displacements in the first 10 seconds and the next 10 seconds

A particle has a velocity u towards east at t = 0 . Its acceleration is towards west and is constant. Let x_(A) and x_(B) be the magnitude of displacement in the first 10 seconds and the next 10 seconds:

When a charged particle moves in an elecltric or a magnetic field, its speed is v and acceleration is a

AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IA
  1. A uniform electric field and unifrom magnetic field cting along the sa...

    Text Solution

    |

  2. An alternate electric field of frequency v, is applied across the dees...

    Text Solution

    |

  3. when a proton is released from rest in a room, it starts with an initi...

    Text Solution

    |

  4. A charged particle is released from rest in a region of steady and uni...

    Text Solution

    |

  5. An electron falling freely under gravity entersa region of uniform hor...

    Text Solution

    |

  6. A proton a deuteron and an alpha - particle having the same kinetic en...

    Text Solution

    |

  7. A particle is projected in a plane perpendicular to a uniform magnetic...

    Text Solution

    |

  8. When a positively charged particle enters a uniform magnetic field wit...

    Text Solution

    |

  9. A charged particle goes undeflected in a region containing electric a...

    Text Solution

    |

  10. A charged particle describes a circle under the influence of the magne...

    Text Solution

    |

  11. A charged particle is projected perpendicular to uniform magnetic fiel...

    Text Solution

    |

  12. Magnetic induction at a point due to a small element of current carryi...

    Text Solution

    |

  13. Statement A : current is scalar Statement B : current element is vec...

    Text Solution

    |

  14. A circular coil carrying current behaves as a

    Text Solution

    |

  15. The current through a circular coil appears to be flowing in clock-wis...

    Text Solution

    |

  16. A long wire carrying a steady current is bent into a circular loop of ...

    Text Solution

    |

  17. A current carrying coil is placed with its plane in the magnetic merid...

    Text Solution

    |

  18. The magnetic dipole moment of current loop is independent of

    Text Solution

    |

  19. The magnetic field at the centre of the current carrying coil is

    Text Solution

    |

  20. A circular coil of radius r having number of turns n and carrying a cu...

    Text Solution

    |