How do you magnetize a circular magnet?

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Discussion Overview

The discussion revolves around the requirements and possibilities for obtaining or creating a specific type of magnet, particularly a circular magnet that exhibits a clockwise or counter-clockwise magnetic field. Participants explore various options for sourcing or modifying magnets for a project, including considerations of permanent versus electromagnets, and the historical context of magnetic materials used in old computer memory systems.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant seeks a magnet with a specific magnetic field orientation and questions what such a magnet is called.
  • Another suggests the possibility of creating a circular magnet by combining two semicircular pieces of material.
  • There are suggestions to search for core memory components on eBay, with varying prices and descriptions of what might be suitable.
  • Some participants express skepticism about the availability of a permanent magnet donut and propose alternative configurations, such as using horseshoe magnets.
  • Concerns are raised about the nature of ferrite materials and their suitability for the participant's needs.
  • One participant mentions the need for the magnet to be a single piece to avoid exposed poles, emphasizing the importance of its shape and magnetic properties.
  • There is a discussion about the potential use of a bar magnet that could be modified into a donut shape.

Areas of Agreement / Disagreement

Participants express differing opinions on the feasibility of obtaining or creating the desired magnet. While some suggest practical solutions, others doubt the practicality or availability of such a magnet, indicating that the discussion remains unresolved.

Contextual Notes

Participants mention limitations regarding the definitions of magnetic materials and the specific requirements for the project, including the need for a permanent magnet with a circular magnetic field. There is also uncertainty about the practical applications of the desired magnet.

Who May Find This Useful

This discussion may be of interest to individuals working on projects involving magnetism, those exploring historical computing technologies, or anyone seeking to understand the properties and applications of different types of magnets.

  • #91
Glad you found something that works. Perhaps there is a textbook/handbook out there that discusses magnetic engineering in simple terms and shows a lot of practical applications. Besides the high quality permanent magnets that would require fields much stronger than what can easily be created in a solenoid to reverse the permanent magnetization, there are no doubt materials available that make low quality permanent magnets where the field strength is somewhat weak but also makes for a permanent magnetism whose direction can be reversed without requiring enormously strong reverse magnetic fields.
 

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