Ag Power Web Enhanced Course Materials

If you experience any problems with the site, please contact Pete Hoffman immediately so corrections can be made. Pete can be reached on campus, via email at phoffman@swtc.edu or by phone at 1.800.362.3322 ext 2727.

Circuits

A circuit is a path for electrons to flow through. The path is from a power sources negative terminal, through the various components and on to the positive terminal (Electron Theory). Think of it as a circle. The paths may split off here and there but they always form a line from negative to positive.

NOTE: Negatively charged electrons in a conductor are attracted to the positive side of the power source.

Simple Circuit

If we break a circuit down to it's elementary blocks we get:

• A Power Source — eg: battery
• A Path — eg: wire
• A Load — eg: lamp
• A Control — eg: switch
• An indicator — eg: Meter (Optional)