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Question 20173
JEE Physics · Medium

Magnetism: Motion of Charge — Helix MCQ

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Motion of Charge — HelixMediumQuestion 20173

Question

A charged particle enters a uniform magnetic field at an angle θ to the field lines. Its path will be:
  1. A
    Circular
  2. B
    Straight line
  3. C
    Parabolic
  4. D
    Helical
    Correct

Correct answer

Helical

Explanation

The component parallel to B is unchanged (no force); the component perpendicular to B causes circular motion → combined path is a helix.

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