The Magnetic Force P582~589

1. Magnetic field is the distribution of a magnetic force in the region of a magnet
2. There are two different magnetic characteristics: north and south are responsible for magnetic force
3. Similar magnetic poles they repel one another, dissimilar poles they attract one another

4. Iron, nickel, and cobalt are ferromagnetic metals

5. All magnets are made from Iron, nickel, and cobalt

6. Magnetic material as composed of many small magnets and is called to domain theory of magnets

7. Domain Theory all large magnets are made up of small and rotatable magnets, called dipoles, therefore they can interact with other dipoles close to each other.

8. If dipoles lines up, a small magnetic domain will be produced

9. Oersted’s Principle: a circular magnetic field around the conductor produces when charge moving through a conductor

10. There are three Right hand rules, which involve using our hand, they abbreviated as RHR.
11. RHR #1 conventional current flow, straight thumb along conductor.

12. RHR #2 right hand rule for coils, curved fingers around conductor