When a charged particle is projected perpendicularly in a magnetic field its trajectory is:
Correct answer: D. Circular
- A. Hyperbola
- B. Helix
- C. Parabola
- D. Circular
Explanation
If a charged particle is projected perpendicular to a uniform magnetic field, then the particle revolves in a circular path and its kinetic energy remains constant since there is no work done by magnetic force. Since a circular path direction of a particle changes, momentum also changes.
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About Charged Particle in a Magnetic Field
A charged particle moving through a magnetic field experiences the Lorentz force, which is perpendicular to both its velocity and the field. The motion may be circular or helical, with questions involving radius, angular frequency, time period, and work done. A stationary charge feels no magnetic force.
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