In a Velocity Selector for Ions, When the Velocity of the Ions

question 57

Multiple Choice

In a velocity selector for ions, when the velocity of the ions is double the value for which the selector is set, how do the magnetic force F_M and the electric force F_E compare?

• A) F_M = 4 F_E
• B) F_M = 2 F_E
• C) F_M = F_E/2
• D) F_M = F_E/4
• E) F_M = 1.414 F_E

---

Definitions:

Mandible

The lower jawbone, which is the largest and strongest bone in the human face.

Appendicular Skeleton

A section of the skeletal framework consisting of bones in the arms and legs, alongside the shoulder and pelvic bones that connect them to the central core of the skeleton.

Eye Orbit

The bony cavity in the skull that houses and protects the eye and its associated structures.

Lacrimal Bone

Small, thin bones located at the front part of the inner wall of the eye socket, forming part of the orbit.