For the past several weeks we have been discussing a working vocabulary to use when talking about electrical systems. Before we move on to actually using our new vocabulary, it might be a good idea to summarize where we are to this point.
The concepts or vocabulary words we have learned thus far are:
Voltage: the pressure in an electrical system.
Current: the flow in an electrical system
Circuit: the path that electricity takes when the pressure causes electrons to flow
Resistance: any opposition the circuit has to the free flow of electricity.
This is a good beginning because we can now discuss virtually any aspect of a normal or abnormal electrical system and, if we understand the above words, we can understand the discussion.