Electric Circuits

We started Friday's class by watching the remaining Prezi presentations, and reading about outlets. Following the reading, we started a section on electric circuits.
Electricity Terminology:

• Electromotive Force (e.m.f) - the potential difference at a power source when no current is being drawn. The e.m.f of a regular "plug-in" is 110V. 
• Battery- a group of two or more cells. One cell is like a "AAA battery."
• Series Combination- when cells are connected with the positive terminal connected to the negative terminal. The electromotive force ( or voltage) is the sum of each cells. 
• Parallel Combination- all the negative terminals are joined together and so are the positive. 

Electric Circuits:

• A circuit always has an energy source (battery), an electrical appliance (bulb), a controlling device ( switch), and a protective device (fuse). The fuse is typically not included in the diagram. 
• Series Circuit- The electrons only have one path to travel. The circuit diagram above is a series circuit. 
• Parallel Circuit- there is two or more paths that the electricity can take. 

We finished the class by looking at Kirchoff's Circuit Analysis.

Kirchoff's Current Law 

• 1. The current is conserved in a series circuit. It is the same throughout the circuit. 

Shelby is next!