A proton has a velocity of 9.0 101 m/s + 1.9 102 m/s and is located in the z = 0 plane at x = 3.1 m, y = 3.6 m at some time t = T. Find the magnetic field in the z = 0 plane at the following.
(a) x = 2.2 m, y = 2.2 m
(b) x = 5.6 m, y = 3.6 m
(c) x = 3.1 m, y = 5.6 m