洛伦兹力提供向心力：F = qvB = mv²/r | 探索电荷、质量、速度和磁场强度如何影响粒子轨迹
(0.00, 0.00) m
1.60 ×10⁻¹³ N
0.042 m
1.31 ×10⁻⁷ s
r = mv/(qB)
T = 2πm/(qB)
F = qvB = mv²/r