In a region, steady and uniform electric and magnetic fields are present. These two fields are parallel to each other. A charged particle is released from rest in this region. The path of the particle will be a

  • Option 1)

    circle

  • Option 2)

    helix

  • Option 3)

    straight line

  • Option 4)

    ellipse.

 

Answers (1)

As we learnt in

Path of charge particle If θ = 0° or θ = 180° -

Trajectory of the particle is a straight line 

i.e.-F=0

- wherein

 

 

 

Magnetic field exerts a force = eBvsin \Theta = eBvsin 0 = 0

Electric field exerts force along a straight line The path of charged particle will be a straight line.


Option 1)

circle

Incorrect option

Option 2)

helix

Incorrect option

Option 3)

straight line

Correct option

Option 4)

ellipse.

Incorrect option

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