Consider a singly ionized (He^+) and a doubly ionized
(He^+2) helium ion both moving at the same velocity on
circular orbits in a homogeneous magnetic field. Which of the
following statements is true regarding the Larmor radii of the two
particles, if v⃗ is always perpendicular to B⃗?
Select the correct answer
He^+ moves on an orbit with a larger radius.
Both ions move on an orbit with exactly the same radius.
He^+ moves on an orbit with a smaller radius.