本题目来源于试卷: Physics Unit20: Magnetism，类别为 通用国际物理
[单选题]
A charged particle moves across a constant magnet2r57*fq 0 amg wegfvk.y/)ecl7d*p6q a6 iiwzic field. The mbzh9p** 5 ww.f2ix89euq : anoeyre2fagnetic force on thi8puq zr :e92ioehe 5nw*xf y*f29.abws particle
A. changes the particle's speed.
B. causes the particle to accelerate.
C. is in the direction of the particle's motion.
D. changes the particle's speed causing the particle to accelerate.
参考答案: B
本题详细解析:
暂无
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