Force on a charged particle moving in a magnetic field
Question
A charged particle is released from rest in a region of steady and uniform electric and magnetic fields which are parallel to each other. The particle will move in a
Moderate
Solution
We know that
Force in electric field = qE
Force in magnetic field = q(v x B)
In electric field, the charge will gain velocity in the field direction. The magnetic field will not apply a force on the charge as the velocity vector is always parallel to magnetic field. So, the particle will move in a straight line in the direction of electric field.
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