A Proton Moving Eastward with a Velocity of 5

question 127

Multiple Choice

A proton moving eastward with a velocity of 5.0 km/s enters a magnetic field of 0.20 T pointing northward. What are the magnitude and direction of the force that the magnetic field exerts on the proton? (e = 1.60 × 10^-19C)

• A) 0 N
• B) 1.6 × 10^-16 N upwards
• C) 1.6 × 10^-16 N downwards
• D) 1.1 × 10^-16 N eastwards
• E) 4.4 × 10^-16 N

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