Certain metals and metallic oxides have the ability to attract other metals. This property is called magnetism, and the materials which have this property are called magnets. Some magnets are found naturally while others must be manufactured.

EO 1.6DEFINE the following terms:

a. Magnetic flux

b. Magnetic flux density

c. Weber

d. Permeability

e. Magnetomotive force (mmf)

f. Ampere turns

g. Field intensity

h. Reluctance

EO 1.7

DESCRIBE the following materials as they relate to permeability, including an example and an approximate relative permeablity.

a. Ferromagnetic materials

b. Paramagnetic materials

c. Diamagnetic materials