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 ac , klbpo*-xclgot1b*1ross a cf4 :zrqz fu6x)4u a2jsonstant magnetic field. The magnetic force on this parti62asff r:zju4 zuq4x )cle
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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