题目内容

下列关于科学家与他们的重大发现的说法中正确的是                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
A.奥斯特B.欧姆C.法拉第D.沈括
发现电流的磁效应      发现安培定则          发现磁偏角          发现电磁感应
A

试题分析:A、奥斯特最早发现电流的磁效应;
B、欧姆发现欧姆定律;
C.法拉第发现电磁感应;
D.沈括发现磁偏角。
A故选A。
点评:解决此类问题需要掌握基本的物理学常识,平时应注意积累.
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