Electricity & Magnetism: Magnetic Domain Model

PIRA Class: 5G20.30

Purpose: 

To demonstrate by analogy the different magnetic domains within a non-magnetized and subsequently magnetized ferromagnetic material. 

Description: 

An array of small compass needles illustrates the domain structures within a ferromagnetic material.

WARNING: Many students already confuse the north and south poles of a magnet to be positive and negative charges (respectively!). This apparatus reinforces this misconception!!!

Equipment: 

Magnetic Domain Model; small, strong magnet

Location:
Shelf 326 (magnetic domain model), 325 (magnets)