magnet and magnetic field lines (id: 3eb2c9895)

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]
02.31: A compass is plac+uiq07 /edzt*:drmbga +r br(ed ne; p/s:nabfz/.esns 5i ust*t/ar a coil of wire. A conventional electrical current is then run through the coil from left to right as shown. This will cause the North pole of the compapf/i/na;.5/e u sstns s z*b:tss to:

A. point toward the left
B. point toward the right
C. point toward the bottom of the paper
D. not move since the magnetic field of the coil is into the paper
E. not move since the magnetic field of the coil is out of the paper


参考答案:  A


本题详细解析: 暂无

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