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course:interesting_problems:2023:topic2:start [2022/08/21 23:53] xiaole 创建 |
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| A light sphere with a conducting surface is suspended from a thin wire. When the sphere is rotated about its vertical axis (thereby twisting the wire) and then released, it starts to oscillate. Investigate how the presence of a magnetic field affects the motion. | A light sphere with a conducting surface is suspended from a thin wire. When the sphere is rotated about its vertical axis (thereby twisting the wire) and then released, it starts to oscillate. Investigate how the presence of a magnetic field affects the motion. | ||
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| + | ===== 参考文献 ===== | ||
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| + | ===== 实验设计初步 ===== | ||
| + | - 选用怎样的金属丝？材质、直径、长度？与金属球之间如何固定？对支架有何考虑？如何固定？ | ||
| + | - 选用怎样材质的金属球？是否需要质量可变？ | ||
| + | - 磁场希望多大？如何产生？需要交变磁场吗？是否需要考虑均匀场？ | ||
| + | - 用什么方法来测量？学习相关软件的使用了吗？ | ||
| + | - 后续数据处理，用什么工具？ | ||
| + | - 如果设备搭建中，有需要自己加工的部件，用3D打印还是金属器材？是否及早学习机械制图？ | ||
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| + | ===== 讨论区 ===== | ||
| + | > 欢迎选课题的同学！ --- //[[leyk@fudan.edu.cn|乐永康]] 2022/09/16 15:22// | ||
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