本题目来源于试卷: Magnetism Magnetism，类别为 IB物理学
[问答题]
How can you make a c*f nn6amc0yd 9ezb6 z3ompass withoutp bc/,pec 4 +*odbf7vt using iron or other ferromagnetic material?
参考答案:
Use
a small loop of current-carrying wire that is able to pivot freely along a
vertical axis (the faces of the loop should be pointing horizontally). Use the right hand rule to determine which
face of the loop has a magnetic north pole pointing out of it. The north and magnetic south poles created by
the loop will attempt to pivot to align with Earth’s magnetic field. The north face of the loop will point toward
the magnetic south pole of Earth (which is near the geographic North Pole).
本题详细解析:
暂无
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