Question: In a 1.25-T magnetic field directed vertically upward, a particle having a charge of magnitude 8.50 .C and initially moving northward at 4.75 km/s is

In a 1.25-T magnetic field directed vertically upward, a particle having a charge of magnitude 8.50 µ.C and initially moving northward at 4.75 km/s is deflected toward the east.
(a) What is the sign of the charge of this particle? Make a sketch to illustrate how you found your answer.
(b) Find the magnetic force on the particle.

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