A Proton Moving with a Velocity of 4

question 101

Multiple Choice

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^-19C)

• A)1.8 × 10^-15 N
• B)0.60 × 10^-15 N
• C)1.1 × 10^-15 N
• D)2.2 × 10^-15 N

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