Question

A charged particle is moved along a magnetic field line.The magnetic force on the particle is

• A. opposite to its velocity
• B. along its velocity
• C. zero
• D. perpendicular to its velocity

Answer 1

The correct option is C zero

A charged particle is moved along a magnetic field line.The magnetic force on the particle is zero.When a charged particle moves along a magnetic field line into a region where the field becomes stronger, the particle experiences a force that reduces the component of velocity parallel to the field.