Physics Unit20: Magnetism (id: a0bd94956)

本题目来源于试卷: Physics Unit20: Magnetism，类别为 通用国际物理

[单选题]
An electric current 5t 1u.g:1:h, nat gzkf.aaoxsosly162; mg-iw -4,jtce fic*uztyv7produces

A. a gravitational field.
B. an electric field.
C. a magnetic field.
D. an electromagnetic field.


参考答案:  C


本题详细解析: 暂无

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