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 observed tra( +axul,35w- d 2/;labz t pmg/xungbmveling in a ci)pb+f3a 9nh*m 3pbf0oin e;jl hs93 xcrcular path in a uniform magnetic field. If the particle had been traveling twice as fast, the radi)3ejpfcn +ln9b bhafhoi30 sm3*px ; 9us of the circular path would 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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