An electron in a hydrogen atom moves in a circle of radius 1.1 × 10-10 m at a speed of about 1.6 × 106 m/s. What is the magnetic dipole moment of this electron due to its orbital motion? 9.3 × 10-24 J/T 1.4 × 10-23 J/T 1.9 × 10-23 J/T 2.8 × 10-23 J/T 3.5 × 10-23 J/T