A Proton Moving at a Speed of 3

question 39

Multiple Choice

A proton moving at a speed of 3.2 × 10⁶ m/s cuts across the lines of a magnetic field at an angle of 61°.The strength of the field is 0.63 × 10−⁴ T.What is the magnitude of the force acting on the proton? (q_p = 1.6 × 10−¹⁹ C)

• A) 1.6E-17 N
• B) 3.1E-17 N
• C) 2.8E-17 N
• D) 7.1E-9 N
• E) ​4.5E-36 N

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