magnet and magnetic field lines (id: f58a468c3)

本题目来源于试卷: magnet and magnetic field lines，类别为 美国物理杯赛(Physics Bowl)

[单选题]
99.04: If conventional (positivev teu:/i vbb; jt/y7lke8u5.lkhvm (; ) electftet78l1 j j7pric current flows from left to right in a wire as shown in the diagram, f 7jl8jp1e7ttwhat is the direction of the magnetic field at point P?

A. toward top of paper
B. towards bottom of paper
C. into paper
D. out of paper
E. to the right


参考答案:  C


本题详细解析: 暂无

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