Home
Class 12
PHYSICS
A charge moving with velocity V in X dir...

A charge moving with velocity `V` in `X` direction is subjected to a field of magnetic induction in the negative `X` direction . As a result the charge will

A

`2N`

B

`3N`

C

`6N`

D

`9N`

Text Solution

Verified by Experts

The correct Answer is:
C

Let value of `F` at `n=1` m be `F_(1)` workdone`=`Area of `F-x` curve
`rArrF_(1)((4+2)/(2))=9 rArrF_(1)=3N`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

When a charged particle moving with velocity vec v is subjected to a magnetic field of induction vec B , the force on it is non-zero. This implies that:

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)

A particle of mass m and charge Q moving with a velocity v enters a region on uniform field of induction B Then its path in the region is s

A particle of charge q and mass m moving with a velocity v along the x-axis enters the region xgt0 with uniform magnetic field B along the hatk direction. The particle will penetrate in this region in the x -direction upto a distance d equal to

A particle of mass M and charge Q moving with velocity vec(v) describe a circular path of radius R when subjected to a uniform transverse magnetic field of induction B . The work done by the field when the particle completes one full circle is

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.

A charge particle of charge q and mass m is moving with velocity v as shown in fig In a uniform magnetic field B along -ve z-direction.Select the correct alternative (s).

A charged particle of mass m is moving with a speed u in a circle of radius r. If the magnetic field induction at the centre is B, the charge on the particle is

Each of the lettered points at the corners of the cube as shown in Fig. 1.60 represents a positive charge q moving with a velocity of magnitude v in the direction indicated. The region in the figure is in a uniform magnetic field vec B , parallel to the x-axis and directed toward right. Copy the figure, find the magnitude and direction of the force on each charge and show the force in your diagram.

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 x gt b is

ALLEN-TEST PAPER-Exercise (Physics)
  1. A particle with total energy E is moving in a potential energy region ...

    Text Solution

    |

  2. In figure, the ball A is released from rest, when the spring is at its...

    Text Solution

    |

  3. A charge moving with velocity V in X direction is subjected to a fiel...

    Text Solution

    |

  4. The potential energy for a force filed vecF is given by U(x,y)=cos(x+y...

    Text Solution

    |

  5. The potential energy of a particle of mass 5 kg moving in the x-y plan...

    Text Solution

    |

  6. As a particle moves along the x-axis, it is acted upon by a conservati...

    Text Solution

    |

  7. Water is flowing in a river at 2 m s^(-1). The river is 50 m wide and ...

    Text Solution

    |

  8. Which of the following statemente is / are INCORRECT? (a) Mechanical...

    Text Solution

    |

  9. Consider the following sketch of potential energy for a particle as a ...

    Text Solution

    |

  10. The potential energy of a 1 kg particle free to move along the x-axis ...

    Text Solution

    |

  11. The figure below shows a graph of potential energy U(s) verses positio...

    Text Solution

    |

  12. A force F acting on a body depends on its displacement S as FpropS^(-1...

    Text Solution

    |

  13. If vec(A)=2hat(i)+hat(j)+hat(k) and vec(B)=hat(i)+2hat(j)+2hat(k), fi...

    Text Solution

    |

  14. An insect starts from (2,3,4) and travels along (hat(i)+2hat(j)+2hat(k...

    Text Solution

    |

  15. For the given vector vec(A)=3hat(i)-4hat(j)+10hat(k), the ratio of mag...

    Text Solution

    |

  16. In the arrangement shown in figure coefficient of friction between 5kg...

    Text Solution

    |

  17. A block is kept at the corner of two walls and force 3N is applied on ...

    Text Solution

    |

  18. A plank of mass 2 kg and length 1 m is placed on horizontal floor.A sm...

    Text Solution

    |

  19. A block is moving along y-axis with velocity vec(v)(A)=4hat(j) on a pl...

    Text Solution

    |

  20. A block is projected up along the line of greatest slope of an incline...

    Text Solution

    |