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

Electric Field of a Charged Disk01:23

Electric Field of a Charged Disk

3.3K
The simplest case of a surface charge distribution is the uniformly charged disk. Calculating its electric field also helps us calculate the electric field of a large plane of charge.
The system's symmetry is in the cylindrical directions across the plane of the charge. As a result, the electric fields created by various surface charge elements nullify each other in the direction parallel to the surface. Thereby, the resulting electric field is perpendicular to the plane. Since the disk is...
3.3K
Electric Field of Two Equal and Opposite Charges01:30

Electric Field of Two Equal and Opposite Charges

7.2K
Atoms generally contain the same number of positively and negatively charged particles, protons, and electrons. Hence, they are electrically neutral. However, the centers of the positive and negative charges do not always coincide. In such a scenario, the electric field of an atom may not be zero.
A separation of the positive and negative charges can lead to a weak, remnant effect of the positive and negative charges. The expectation is that the more the distance between the positive and...
7.2K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

837
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
837
Induced Electric Dipoles01:28

Induced Electric Dipoles

4.9K
A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
4.9K
Faraday Disk Dynamo01:23

Faraday Disk Dynamo

3.8K
A Faraday disk dynamo is a DC generator, producing an emf that is constant in time. It consists of a conducting disk that rotates with a constant angular velocity in the magnetic field, perpendicular to the disk's plane. The rotation of the disk causes a change in magnetic flux, which induces an emf, causing opposite charges to develop on the rim and in the center of the disk. The polarity of the induced emf can be determined by the direction of the magnetic field and the direction of the...
3.8K
Electric Field Lines01:25

Electric Field Lines

10.1K
The three-dimensional representation of the electric field of a positive point charge requires tracing the electric field vectors, whose lengths decrease as the square of their distance from the charge and which point away from the charge at each point. This vector field is no doubt challenging to visualize. The visualization of electric fields becomes quickly intractable as the number of charges increases.
The solution to this problem is to use electric field lines, which are not vectors but...
10.1K

You might also read

Related Articles

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

Sort by
Same author

Visual Computation of Material Microstructure and Deformation.

Materials (Basel, Switzerland)·2024
Same author

Effect of pulsating solidification on the surface properties of conductive materials.

Proceedings. Mathematical, physical, and engineering sciences·2022
Same author

Room temperature texturing of austenite/ferrite steel by electropulsing.

Scientific reports·2017
Same author

Using electric current to surpass the microstructure breakup limit.

Scientific reports·2017
Same author

Controlled motion of electrically neutral microparticles by pulsed direct current.

Scientific reports·2015
Same author

Lattice Boltzmann simulation of rarefied gas flows in microchannels.

Physical review. E, Statistical, nonlinear, and soft matter physics·2005

Related Experiment Video

Updated: Feb 24, 2026

Finite Element Modelling of a Cellular Electric Microenvironment
08:23

Finite Element Modelling of a Cellular Electric Microenvironment

Published on: May 18, 2021

4.0K

Electric-field-induced alignment of electrically neutral disk-like particles: modelling and calculation.

Rongshan Qin1

  • 1School of Engineering & Innovation, The Open University, Walton Hall, Milton Keynes, MK7 6AA, United Kingdom. rongshan.qin@open.ac.uk.

Scientific Reports
|August 18, 2017
PubMed
Summary

This study shows electric fields can align neutral particles in conductive materials. This particle alignment creates useful macroscale properties from the anisotropic nature of small particles.

More Related Videos

Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.8K
Electric and Magnetic Field Devices for Stimulation of Biological Tissues
13:29

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Published on: May 15, 2021

5.8K

Related Experiment Videos

Last Updated: Feb 24, 2026

Finite Element Modelling of a Cellular Electric Microenvironment
08:23

Finite Element Modelling of a Cellular Electric Microenvironment

Published on: May 18, 2021

4.0K
Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.8K
Electric and Magnetic Field Devices for Stimulation of Biological Tissues
13:29

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Published on: May 15, 2021

5.8K

Area of Science:

  • Materials Science
  • Physics
  • Electrical Engineering

Background:

  • Electrically neutral particles in conductive matrices can exhibit torque under electric fields.
  • Particle alignment is crucial for achieving desired bulk material properties.

Purpose of the Study:

  • To investigate the torque exerted by electric fields on neutral particles within a conductive matrix.
  • To explore the mechanism of particle alignment and its impact on material properties.

Main Methods:

  • Thermodynamic calculations of electric current free energy for various microstructure configurations.
  • Analysis of particle rotation towards alignment with electric current flow.

Main Results:

  • A significant torque is induced on neutral particles by electric fields, aligning them parallel to current flow.
  • This alignment is effective even at low electrical potential gradients (100 V/m).

Conclusions:

  • Electric field-induced torque offers a method to control particle orientation and achieve macroscale anisotropic properties.
  • The study discusses the implications for electrical, electroplastic, and thermal properties during particle alignment.