Home
Class 12
PHYSICS
A charged particle, having charge q(1) a...

A charged particle, having charge `q_(1)` accelerated through a potential difference V enters a perpendicular magnetic field in which it experiences a force F. It V is increased to 5V, the particle will experience a force

A

F

B

5F

C

`F/5`

D

`sqrt(5)F`

Text Solution

Verified by Experts

The correct Answer is:
2
`1/2mv^(2)=qV rArr v=sqrt(2qV/m ).`.Also F=qvB
`rArr F=qBsqrt(2qV/m)` hence `F alpha sqrt(V)` which gives `F’=sqrt(5)F`
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES & MAGNETISM

    VMC MODULES ENGLISH|Exercise PRACTICE EXERCISE 1|1 Videos

  • MOVING CHARGES & MAGNETISM

    VMC MODULES ENGLISH|Exercise PRACTICE EXERCISE 2|2 Videos

  • MOVING CHARGES & MAGNETISM

    VMC MODULES ENGLISH|Exercise Illustration|55 Videos

  • Motion in Two Dimensions

    VMC MODULES ENGLISH|Exercise MCQ|2 Videos

  • PROPERTIES OF MATTER

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive) Level - 2 (MATRIX MATCH TYPE)|1 Videos

Similar Questions

Explore conceptually related problems

A charged particle of mass m and charge q is accelerated through a potential differences of V volts. It enters of uniform magnetic field B which is directed perpendicular to the direction of motion of the particle. The particle will move on a circular path of radius

A charged particle of mass m and charge q is accelerated through a potential difference of V volts. It enters a region of uniform magnetic field which is directed perpendicular to the direction of motion of the particle. Find the radius of circular path moved by the particle in magnetic field.

An electron accelerated through a potential difference V passes through a uniform tranverses magnetic field and experiences a force F. If the accelerating potential is increased to 2V, the electron in the same magnetic field will experience a force:

A particle of mass m carrying charge q is accelerated by a potential difference V. It enters perpendicularly in a region of uniform magnetic field B and executes circular arc of radius R, then q/m equals

If a charged particle enters perpendicular in the uniform magnetic field then

When an electron is accelerated through a potential difference V , it experience a force F through as uniform transverse magnetic field. If the potential difference is increased to 2 V, the force experoenced by the electron in the same magnetic field is

A charged particle having mass m and charge q is acceleration by a potential difference V, it files through a uniform tranverse magnetic field b.The field occupies a region of space d.Find the time interval for which it remains inside the magnetic field (i) An alpha particle is acceleration by a potential difference of 10^(4) V. Find the change in tis direction of motiom if it enters normally in a region of thicknees 0.1 , having transverse magnetic induction of 0.1T(m_(aplha)=6.4xx10^(-27)kg) (ii) a 10 g bullet having a charge of 4muC is fired at a speed 270ms^(-1) in a horizontal direction,A vertical magnetic field as it travels through 100 m .Make appropriate approximations

A particle of charges Q and mass m travels through a potential difference V from rest. The final momentum of the particle is

A charged particle moving in a magnetic field experiences a resultant force

An electron is accelerated from rest through a potential difference V. This electron experiences a force F in a uniform magnetic field. On increasing the potential difference to V', the force experienced by the electron in the same magnetic field becomes 2F. Then, the ratio (V'//V) is equal to

VMC MODULES ENGLISH-MOVING CHARGES & MAGNETISM -SOLVED EXAMPLES
  1. Two identical short bar magnets, each having magnetic moment M, are pl...

    Text Solution

    |

  2. The length of a magnet is large compared to its width and breadth. The...

    Text Solution

    |

  3. A magnet oscillating in a horiztional plane has a time period of...

    Text Solution

    |

  4. The radius of the coil of a Tangent galvanometer, which has 10 turns, ...

    Text Solution

    |

  5. A dip needle vibrates plane perpendicular to magnetic meridian. The ti...

    Text Solution

    |

  6. A dip circle is tpo that its needle moves freely in the magnetic merid...

    Text Solution

    |

  7. The distance between the poles of a horse shoe magnet is 0.1 m and its...

    Text Solution

    |

  8. The magnetic moment produced in a substance of 1 gm is 6xx10^(-7) "a...

    Text Solution

    |

  9. If an electron and a proton are projected at right angles to a uniform...

    Text Solution

    |

  10. A proton and analpha-particles enters in a uniform magnetic field with...

    Text Solution

    |

  11. A charged particle, having charge q(1) accelerated through a potential...

    Text Solution

    |

  12. Three long, straight and parallel wires carrying currents are arranged...

    Text Solution

    |

  13. What is the net force on the rectangular coil

    Text Solution

    |

  14. An infinitely long, straight conductor AB is fixed and a current is p...

    Text Solution

    |

  15. Magnetic field at point 'P' due to given current distribution :-

    Text Solution

    |

  16. What will be the resulatant field at the origin due to the four ind...

    Text Solution

    |

  17. Two parallel, long wires carry currents i(1) "and" i(2) with i(1)gti(2...

    Text Solution

    |

  18. Consider the following figure in which ABCD is a square of edge a .Res...

    Text Solution

    |

  19. Two solenoids having lengths L and 2L and the number of loops N and 4N...

    Text Solution

    |

  20. A winding wire which is used to frame a solenoid can bear a maximum 10...

    Text Solution

    |