Question

A particle of mass m and charge q with an initial velocity v is subjected to a uniform magnetic field B along the vertical direction. The particle will

• A. follow a circular path if v is along the vertical direction
• B. make helical motion if v is along the horizontal direction
• C. make helical motion if v is neither parallel nor orthogonal to B
• D. always make circular motion
• E. always make helical motion

Hint:

The path of a charged particle in a uniform magnetic field is a straight line if \( \vec{v} \parallel \vec{B} \), a circle if \( \vec{v} \perp \vec{B} \), and a helix for any other angle between them.

Answer 1

The Correct Option is C