Home
Class 12
PHYSICS
What is the direction of the force actin...

What is the direction of the force acting on a charged particle q, moving with a velocity `vec(v)` a uniform magnetic field `vec(B)` ?

Text Solution

Verified by Experts

Force on a charged particle `F = B q v sin theta`
F is maximum when `theta = 90^0 , F_("max") = Bqv`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETICS

    AAKASH SERIES|Exercise PROBLEMS (LEVEL -I)|40 Videos

  • ELECTROMAGNETICS

    AAKASH SERIES|Exercise PROBLEMS (LEVEL -II)|40 Videos

  • ELECTROMAGNETICS

    AAKASH SERIES|Exercise EXERCISE (SHORT ANSWER QUESTIONS)|6 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH SERIES|Exercise EXERCISE -II|22 Videos

  • ELECTROSTATICS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS)|5 Videos

Similar Questions

Explore conceptually related problems

Define one tesla using the expression fo the magnetic force acting on a particle of charge .q. moving with velocity vec(v) in a magnetic field vec(B) .

(a) Write the expression for the magnetic force acting on a k charged particle moving with velocity v in the presence of magnetic field B . (b) A neutron an electron and an alpha particel moving with equal velocities enter a uniform magnetic field going into the plane of the paper as shown. Trace their paths in the field and justify your answer .

The magnetic flux linked with a vector area vec(A) in a uniform magnetic field vec(B) is

Write the expression for the magnetic force vecF acting on a charged particle q moving with vec upsilon in the presence of the magnetic field vec B in a vector form. Show that no work is done and no change in the magnitude of the velocity of the particle is produced by this force. Hence define the unit of magnetic field.

Answer the following: (a) Write the expression for the force vec(F) acting on a particle of mass m and charge q moving with velocity vecV in a magnetic field vecB . Under what conditions will it move in (i) a circular path and (ii) a helical path ? (b) Show that the kinetic energy of the particle moving a magnetic field remains constant.

(a) Write the expression for the force, vecF , acting on a charged particle of charge 'q', moving with a velocity vecV in the presence of both electric field vecE and magnetic field vecB . Obtain the condition under which the particle moves undeflected through the fields. (b) A rectangular loop of size lxxb carrying a steady current I is placed in a uniform magnetic field vecB . Prove that the torque vectau acting on the loop is given by vectau=vecmxxvecB," where "vecm is the magnetic moment of the loop.

The direction of the magnetic force on a positive charge q moving with velocity v in a uniform magnetic field B for the following cases. (i) magnetic field is out of the plane of paper and velocity vector is eastward (ii) magnetic field is directed South ward and velocity vector is in south west direction.

Write an expression in a vector form for the Lorentz magnetic force vecF on a charge Q moving with velocity vecV in a magnetic field vecB . What is the direction of the magnetic force?

A particle of specific charge q//m = (pi) C//kg is projected from the origin towards positive x-axis with a velocity of 10 m//s in a uniform magnetic field vec(B) = -2 hat K Tesla. The velocity vec V of the particle after time t =1//6 s will be

A particle of specific charge q//m = (pi) C//kg is projected from the origin towards positive x-axis with a velocity of 10 m//s in a uniform magnetic field vec(B) = -2 hat K Tesla. The velocity vec V of the particle after time t =1//6 s will be

AAKASH SERIES-ELECTROMAGNETICS-EXERCISE (VERY SHORT ANSWER QUESTIONS )
  1. What is the importance of Oersted's experiment?

    Text Solution

    |

  2. An electric current flows in a wire from east to west- What will be t...

    Text Solution

    |

  3. What is the work done in taking a north pole of strength m around a lo...

    Text Solution

    |

  4. Does a current carrying circular coil produce uniform magnetic field ?

    Text Solution

    |

  5. Two parallel long wires separated by a distance 'd' carry equal curren...

    Text Solution

    |

  6. What is the force on a conductor of length l carrying current 'i' when...

    Text Solution

    |

  7. When a charged particle moves in a uniform magnetic field at right ang...

    Text Solution

    |

  8. If an electron is not deflected in passing through a certain region of...

    Text Solution

    |

  9. What will be the path of a charged particle moving along the direction...

    Text Solution

    |

  10. An electron beam is moving horizontally towards east. If this beam pa...

    Text Solution

    |

  11. What is the direction of the force acting on a charged particle q, mov...

    Text Solution

    |

  12. Does the torque on a current loop in magnetic field change, when its s...

    Text Solution

    |

  13. A current carrying loop free to turn is placed in a uniform magnetic f...

    Text Solution

    |

  14. Is the resistance of an ammeter greater than or less than that of the ...

    Text Solution

    |

  15. Is the resistance of a voltmeter greater than or less that of the galv...

    Text Solution

    |

  16. A moving coil galvanometer can measure a current of 10^(-6)A. What is ...

    Text Solution

    |

  17. What is the smallest value of current that can be measured with a movi...

    Text Solution

    |

  18. How do you convert a moving coil galvanometer into an ammeter?

    Text Solution

    |

  19. The conversion of a moving coil galvanometer into a voltmeter is done ...

    Text Solution

    |