Force on a Moving Charge: A proton moving with a velocity of 4.0 × 104 m/s enters a magnetic field of 0.20 T. If the angle between the velocity of the proton and the direction of the magnetic field is 60°, what is the magnitude of the magnetic force on the proton? (e = 1.60 × 10-19 C)

A. 1.8 × 10-15 N
B. 0.60 × 10-15 N
C. 1.1 × 10-15 N
D. 2.2 × 10-15 N
E. 3.3 × 10-15 N


Answer: C

Physics & Space Science

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