11. Assuming an electron in a hydrogen atom moves inin aa circle of radius 1.1 x 10-10m at a speed 1.6x106m/s, what is the value of magnetic dipole moment (in unit of J/T) of this electron due to its orbital motion?(A) 2.6 x 10-54 (B) 1.4 x 10-23 (C) 1.9 x 10-23 (D) 2.8 x 10-23 (E) 2.8 x 10-22