Question

Positively charged particle trajectories always follow what?

A) Magnetic field lines
B) Gravitational field lines
C) Electric field lines
D) Heat conduction lines

Answer 1

Positively charged particle trajectories always follow magnetic field lines, as the force experienced by the particle is perpendicular to its direction of travel and causes it to move in a curved path.

Step-by-step explanation:

Positively charged particle trajectories always follow magnetic field lines. When a charged particle moves perpendicular to a uniform magnetic field, it experiences a force that is perpendicular to its direction of travel. This force causes the particle to follow a curved path, ultimately forming a complete circle. Charged particles often follow magnetic field lines rather than cross them because the force is zero when the particle's velocity is parallel to the magnetic field.