A Simple Model of Magnetization

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

This visualization is found as a static image in most physics textbooks. Despite its simplicity it is a good model for the magnetization of ferromagnetic material. Adjust the strength of an external magnetic field from zero in either direction.

Contributed by: Hans-Joachim Domke (March 2011)
Open content licensed under CC BY-NC-SA



A block of unmagnetized ferromagnetic material (e.g., iron) is shown. The magnetic domains are represented by small magnets in arbitrary orientations that cancel out a magnetic effect. An external magnetic field increases the number of domains that have the same orientation as the external field. This is visualized by a growing number of the small magnets becoming equally directed.

Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.