A Uniform Magnetic Field of 0

question 78

Multiple Choice

A uniform magnetic field of 0.50 T is directed along the positive x axis. A proton moving with a speed of 60 km/s enters this field. The helical path followed by the proton shown has a pitch of 5.0 mm. Determine the angle between the magnetic field and the velocity of the proton.

• A) 39°
• B) 51°
• C) 44°
• D) 34°
• E) 71°

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