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Question 1 0 / 0.3 pts A charged particle is moving horizontally westward with a velocity of 4.5 x 10 m/s in a region where there is a magnetic field of magnitude 5.6 x 10-5 T directed vertically downward. The particle experiences a force of 7.8 x 10-16 N northward. What is the charge on the particle? -4.0 x 10-18 C -3.1.0 x 10-18 C +4.9 x 10 5 C -1.2 x 10 18 C 0 +1.4 x 10-11 C