College Physics ›› 2020, Vol. 39 ›› Issue (8): 3-6.doi: 10.16854 /j.cnki.1000-0712.190560

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Comparing analytic solution of the magnetic field of ring current with its numerical integration and their visualization

ZHOU Qun-yi1,MO Yun-fei2,HOU Zhao-yang3,ZHOU Li-li4   

  1. 1. College of Tianhe,Guangdong Polytechnic Normal University,Guangzhou,Guangdong 510540,China; 2. School of Electronic Information and Electrical Engineering,Changsha University,Changsha,Hunan 410022,China; 3. School of Science,Chang’an University,Xi’an,Shaanxi 710064,China; 4. Department of Information Engineering,Gannan Medical University,Ganzhou,Jiangxi 341000,China
  • Received:2019-12-09 Revised:2020-01-12 Online:2020-08-20 Published:2020-09-02

Abstract: The integral formulas of magnetic field of ring current are derived in the dimensionless forms. The

magnetic field is calculated by the numerical integration,and its spatial distribution is visualized by means of MATLAB.

The analytic solutions of the magnetic field of ring current are also derived,and its validity is verified according to their graph.

Key words: ring current, magnetic field, numerical integration, dimensionless diagram