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Questions  

A charged particle moves in a uniform magnetic field. The velocity of the particle at some instant makes an acute angle with the magnetic field. The path of the particle will be

a
A straight line
b
A circle
c
A helix with uniform pitch
d
A helix with non-uniform pitch

detailed solution

Correct option is C

When particle enters a uniform magnetic field at an angle other than 0°, 90° or 180°, path followed is helix.

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