Chapter 4: Q7E (page 948)
A negative charge q= -3.60 * 10-6 C is located at the origin and has velocity vS_17.50 * 104m>s2dn_1-4.90 * 104 m>s2en. At this instant what are the magnitude and direction of the magnetic field produced by this charge at the point x= 0.200 m, y= -0.300 m, z= 0?