Magnetism and Motion of Charged Particles (4C) Practice Test

An electron enters a uniform magnetic field region and follows a circular path. If the electron’s charge were hypothetically changed to $+e$ while keeping the same mass, speed, and entry direction relative to $\vec B$, which change is most consistent with the observed trajectory?

In a cathode-ray tube test, electrons move to the right and enter a region of uniform magnetic field directed downward (in the plane of the page). Neglect electric fields. Which direction is most consistent with the electron beam’s initial deflection?