| 探究直流导线周围磁场的变化 |
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| 引用本文： | 欧英雷.探究直流导线周围磁场的变化[J].物理实验,2011(11):10-12. |
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| 作者姓名： | 欧英雷 |
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| 作者单位： | 广东工贸职业技术学院电气自动化系; |
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| 摘 要： | 利用螺绕环、线圈、电流计和可变电阻器等设备,设计了探究直流导线周围磁场变化的实验装置.由电源、转向开关和电阻来改变导线中电流大小和方向,进而改变直流导线周围的磁场,通过灵敏电流计来探究缠有线圈的螺绕环中感应电流的变化,由此得出直流导线周围的磁场大小和方向与直流导线中电流的大小和方向的关系.
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| 关 键 词： | 直流 磁场 磁通量 感应电流 |
Exploring the changes of the magnetic field around DC wire |
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| OU Ying-lei.Exploring the changes of the magnetic field around DC wire[J].Physics Experimentation,2011(11):10-12. |
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| Authors: | OU Ying-lei |
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| Institution: | OU Ying-lei(Department of Automation,Guangdong College of Industry and Commerce,Guangzhou,Guangdong510510,China) |
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| Abstract: | Using twist ring,coil,galvanometer,variable resistor and other devices,an experimental device for exploring the changes of the magnetic field around DC wire was designed.When the magnetic field was changed by varying the exciting current,the induced current was detected by a galvanometer.The relation between the magnetic flux and the current was presented. |
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| Keywords: | direct current magnetic field magnetic flux induced current |
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