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

Magnetic Force Between Two Parallel Currents01:13

Magnetic Force Between Two Parallel Currents

4.6K
Two long, straight, and parallel current-carrying conductors exert a force of equal magnitude on one another. The direction of the force depends on the current direction in the conductors.
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and  the vector product of the length vector along the current element and the field due to the first conductor. According to the...
4.6K
Magnetic Force On A Current-Carrying Conductor01:25

Magnetic Force On A Current-Carrying Conductor

5.1K
Moving charges experience a force in a magnetic field. Since the magnetic fields produced by moving charges are proportional to the current, a conductor carrying a current creates a magnetic field around it.
Consider a compass placed near a current-carrying wire. The wire experiences a force that aligns the needle of the compass tangentially around the wire. Thus, the current-carrying wire produces concentric circular loops of magnetic field. The magnetic field generated by a wire can be...
5.1K
Magnetic Force On Current-Carrying Wires: Example01:22

Magnetic Force On Current-Carrying Wires: Example

2.2K
In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.
2.2K
Force On A Current Loop In A Magnetic Field01:17

Force On A Current Loop In A Magnetic Field

4.2K
Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process, commutators...
4.2K
Intermolecular Forces03:13

Intermolecular Forces

70.9K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
70.9K
Real Gases: Effects of Intermolecular Forces and Molecular Volume Deriving Van der Waals Equation04:01

Real Gases: Effects of Intermolecular Forces and Molecular Volume Deriving Van der Waals Equation

39.0K
Thus far, the ideal gas law, PV = nRT, has been applied to a variety of different types of problems, ranging from reaction stoichiometry and empirical and molecular formula problems to determining the density and molar mass of a gas. However, the behavior of a gas is often non-ideal, meaning that the observed relationships between its pressure, volume, and temperature are not accurately described by the gas laws.
39.0K

You might also read

Related Articles

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

Sort by
Same author

Electric Field Influence on CO Clathrate Hydrates.

The journal of physical chemistry. A·2024
Same author

Probing the Electric Field Response of a Water Molecule Confined in Small Carbon Nanocages: A Density Functional Theory Investigation.

Chemphyschem : a European journal of chemical physics and physical chemistry·2024
Same author

Exploring electric field induced structural evolution of water clusters, (H2O)n [n = 9-20]: density functional approach.

The Journal of chemical physics·2013
Same author

Methanol clusters (CH3OH)n, n = 3-6 in external electric fields: density functional theory approach.

The Journal of chemical physics·2011
Same author

Steady-state current transfer and scattering theory.

The Journal of chemical physics·2010
Same author

Microsolvation of methyl hydrogen peroxide: ab initio quantum chemical approach.

The Journal of chemical physics·2009

Related Experiment Video

Updated: Jan 31, 2026

Recording Gap Junction Current from Xenopus Oocytes
09:04

Recording Gap Junction Current from Xenopus Oocytes

Published on: January 21, 2022

2.7K

Circular current and induced force in a molecular ring junction.

Umesh Dhakal1, Dhurba Rai1

  • 1Department of Physics, Sikkim University, Samdur, East Sikkim, 737102, India.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|January 10, 2019
PubMed
Summary

We investigated bias-induced circular current in molecular ring junctions. This current can cause bond rupture, highlighting reliability issues in molecular electronics due to current magnification.

More Related Videos

Focal Macropatch Recordings of Synaptic Currents from the Drosophila Larval Neuromuscular Junction
07:01

Focal Macropatch Recordings of Synaptic Currents from the Drosophila Larval Neuromuscular Junction

Published on: September 25, 2017

6.4K
Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy
08:10

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy

Published on: November 20, 2021

3.4K

Related Experiment Videos

Last Updated: Jan 31, 2026

Recording Gap Junction Current from Xenopus Oocytes
09:04

Recording Gap Junction Current from Xenopus Oocytes

Published on: January 21, 2022

2.7K
Focal Macropatch Recordings of Synaptic Currents from the Drosophila Larval Neuromuscular Junction
07:01

Focal Macropatch Recordings of Synaptic Currents from the Drosophila Larval Neuromuscular Junction

Published on: September 25, 2017

6.4K
Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy
08:10

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy

Published on: November 20, 2021

3.4K

Area of Science:

  • Molecular electronics
  • Quantum chemistry
  • Condensed matter physics

Background:

  • Circular current in molecular ring junctions is crucial for understanding electronic transport.
  • Defining and measuring circular current presents theoretical and practical challenges.

Purpose of the Study:

  • To define and determine bias-induced circular current in molecular ring junctions.
  • To explore the potential for circular current to induce forces that rupture covalent bonds.
  • To assess the reliability implications of current magnification effects in molecular rings.

Main Methods:

  • Theoretical analysis of bias-induced circular current.
  • Defining circular current via magnetic flux induction and magnetic response in the zero-flux limit.
  • Investigating circular current-induced forces on covalent bonds.

Main Results:

  • Bias-induced circular current can be determined without calculating individual bond currents.
  • Circular current can generate forces capable of breaking covalent bonds.
  • Current magnification effects pose significant reliability challenges for molecular ring junctions.

Conclusions:

  • Novel methods for determining bias-induced circular current in molecular rings have been established.
  • The study reveals a mechanism for bond rupture in molecular junctions driven by circular current.
  • Findings emphasize the critical need to address current magnification for reliable molecular electronic devices.