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]
96.27: A long straight wire conductor i 7bf9 / vqgy4u s+ddgh-s plac o9ehcjo/,/ xe ed below a compass. When the conventional current in the conductor is from south to north and large, the N ,xcj/e/ooh 9 epole of the compass:
A. remains undeflected.
B. points to the south.
C. points to the west.
D. points to the east
E. has its polarity reversed.
参考答案: D
本题详细解析:
暂无
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