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 is o7cwgsg el3(/le.;0j jepsf y 4b tc,mvo4:k a-vserved traveling in a circular path in a uniform magnetic field. If the particle had been traveling twice as fast, the radius of the circular path wc:t-v4v, kao mould be
A. twice the original radius.
B. four times the original radius.
C. one-half the original radius.
D. one-fourth the original radius.
参考答案: A
本题详细解析:
暂无
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