Analysis of gedanken-experiment models of the displacement current and its generalization to physics education
| Project/Area Number |
25560079
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Science education
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| Research Institution | Hyogo University of Teacher Education |
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Principal Investigator |
Ishihara Satoshi 兵庫教育大学, 学校教育研究科(研究院), 准教授 (60263414)
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| Research Collaborator |
ITO Katsumi
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Keywords | 変位電流 / 電束密度 / 電磁気学 / 物理教育 / 電束電流 / 静電気 / 電磁気 / 重ね合わせの原理 / 電荷保存則 |
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| Outline of Final Research Achievements |
In recent years there is controversy whether displacement current produces magnetic fields or not based on gedanken-experiment models. To resolve it is the aim of our research. We derived a general result that does not depends on the detail of the models, which is based only on the fundamental law of the electromagnetism, the consevation law of charge and the principle of superposition.
We also developed an aparatous for directly detecting the magnetic fields induced by the displacement current. We obtained preliminary data, which indicates displacement current, reducing the infuluence of polarization currents and electrostatic inductions.
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Report
(4 results)
Research Products
(11 results)
