A particle moves in a region having a uniform magnetic field and a par – InterviewSolution

InterviewSolution

1.	A particle moves in a region having a uniform magnetic field and a parallel, uniform electric field. At some instant, the velocity of the particle is perpendicular to the field direction. The path of the particle will be (a) a straight line (b) a circle (c) a helix with uniform pitch (d) a helix with nonuniform pitch.
Answer» (d) a helix with nonuniform pitch.

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