Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Toroids01:27

Toroids

A toroid is a closely wound donut-shaped coil constructed using a single conducting wire. In general, it is assumed that a toriod consists of multiple circular loops perpendicular to its axis.
When connected to a supply, the magnetic field generated in the toroid has field lines circular and concentric to its axis. Conventionally, the direction of this magnetic field is expressed using the right-hand rule. If the fingers of the right hand curl in the current direction, the thumb points in the...
Torque On A Current Loop In A Magnetic Field01:13

Torque On A Current Loop In A Magnetic Field

The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Divergence and Curl of Magnetic Field01:26

Divergence and Curl of Magnetic Field

The magnetic field due to a volume current distribution given by the Biot–Savart Law can be expressed as follows:
Magnetic Fields01:27

Magnetic Fields

A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
Magnetic Field Of A Current Loop01:16

Magnetic Field Of A Current Loop

Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
Magnetic Field Lines01:19

Magnetic Field Lines

The representation of magnetic fields by magnetic field lines is very useful in visualizing the strength and direction of the magnetic field. Each of the magnetic field lines forms a closed loop. The field lines emerge from the north pole (N), loop around to the south pole (S), and continue through the bar magnet back to the north pole.
Magnetic field lines follow several hard-and-fast rules:

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Availability of Telehealth Services for Children at Mental Health Treatment Facilities.

JAMA network open·2026
Same author

Characterization and Identification of Potential Allergenic Proteins in <i>Sophora japonica</i> L. Pollen.

Journal of proteome research·2026
Same author

Hairpin Vortices Extraction in Turbulent Boundary Layer Flows.

IEEE transactions on visualization and computer graphics·2026
Same author

AI Chatbot Use and Disclosure for Mental Health Among US Adolescents and Young Adults.

JAMA pediatrics·2026
Same author

COF-derived photocatalytic artificial enzymes-assisted precision analysis of active ingredients in natural product extracts.

Talanta·2026
Same author

Structural Influences on Mental Health and Mental Health Care.

Harvard review of psychiatry·2026

Related Experiment Video

Updated: Jun 7, 2026

Magnetic Tweezers for the Measurement of Twist and Torque
11:41

Magnetic Tweezers for the Measurement of Twist and Torque

Published on: May 19, 2014

Analysis of recurrent patterns in toroidal magnetic fields.

Allen R Sanderson1, Guoning Chen, Xavier Tricoche

  • 1SCI Institute, University of Utah, USA. allen@sci.utah.edu

IEEE Transactions on Visualization and Computer Graphics
|October 27, 2010
PubMed
Summary
This summary is machine-generated.

Physicists developed a new method to analyze the topology of magnetic fields in fusion energy research. This technique uses minimal length fieldlines and visualization tools to study plasma confinement.

More Related Videos

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
09:43

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

Related Experiment Videos

Last Updated: Jun 7, 2026

Magnetic Tweezers for the Measurement of Twist and Torque
11:41

Magnetic Tweezers for the Measurement of Twist and Torque

Published on: May 19, 2014

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
09:43

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

Area of Science:

  • Plasma Physics
  • Computational Science
  • Fusion Energy

Background:

  • Magnetic confinement fusion is a promising low-cost energy source.
  • Analyzing the topology of Hamiltonian magnetic fields is crucial for plasma confinement.
  • Traditional field analysis techniques are unsuitable for Hamiltonian magnetic fields.

Purpose of the Study:

  • To develop and apply a novel technique for determining the topology of toroidal magnetic fields.
  • To analyze the Poincaré map and identify critical topological features in magnetic confinement systems.
  • To provide physicists with advanced tools for understanding burning plasma simulations.

Main Methods:

  • Utilizing fieldlines of near-minimal lengths to map magnetic field topology.
  • Analyzing the Poincaré map within a Poincaré section.
  • Identifying critical points and topological features relevant to plasma physics.
  • Developing an interactive parallel visualization tool for deployment.

Main Results:

  • Successfully determined the topology of toroidal magnetic fields using the developed technique.
  • Identified key critical points and topological features within the Poincaré sections.
  • The visualization tool is actively used by physicists for new insights.
  • The method is effective for analyzing complex magnetic field structures.

Conclusions:

  • The new technique effectively analyzes the topology of Hamiltonian magnetic fields in fusion research.
  • The interactive visualization tool enhances the understanding of magnetically confined burning plasmas.
  • This approach offers significant advancements in magnetic field analysis for fusion energy development.