A Proton Moving with a Velocity of 4

question 164

Multiple Choice

A proton moving with a velocity of 4.0 × 10⁴ m/s along the +y-axis enters a magnetic field of 0.20 T directed towards the -x-axis. What is the magnitude of the magnetic force acting on the proton? (e = 1.60 × 10^-19C)

• A) 8.0 × 10^-15 N
• B) 3.9 × 10^-15 N
• C) 2.6 × 10^-15 N
• D) 0 N
• E) 1.3 × 10^-15 N

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