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
circle
helix
straight line
ellipse.
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 = 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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