Consider the magnetic forces and particle velocities shown in the figure.
(a) What is the direction of the magnetic field that produces the magnetic force on a positive charge as shown in (a), assuming B is perpendicular to v?
(b) What is the direction of the magnetic field that produces the magnetic force on a positive charge as shown in (b), assuming B is perpendicular to v?
(c) What is the direction of the magnetic field that produces the magnetic force on a positive charge as shown in (c), assuming B is perpendicular to v?
