A Proton Moving with a Speed of 6

Multiple Choice

A proton moving with a speed of 6.0 × 10⁵ m/s perpendicular to a uniform magnetic field of 0.20 T will follow which of the paths described below? (q_p = 1.6 × 10−¹⁹ C and m_p = 1.67 × 10−²⁷ kg)

A) a circular path of 1.6-cm radius
B) a circular path of 3.1-cm radius
C) a circular path of 6.3-cm radius
D) a straight line path