Magnetic Permeability

Mr. Andersen explains magnetic permeability, the ability of materials to create internal magnetic fields. He begins by discussing magnetic fields using bar magnets and a compass. The concept of magnetic permeability is introduced, highlighting its measurement in free space and materials. The video explains how to measure permeability using a toroid and compares the permeability of different materials, emphasizing the high permeability of iron. The video concludes with a discussion on relative permeability, comparing materials like wood, aluminum, and magnetic elements.

Describe how the magnetic permeability of free space is measured.

What is the significance of relative magnetic permeability in comparing materials?

Why is iron considered a good magnet based on its molecular structure?