1.  A ‘shocking’ discovery

2.  In order for current to flow, the pathway must be a continuous, uninterrupted loop called a circuit.

4.  Voltage Source  Loads / Resistors  Switches  Breakers / Fuses

5.  For current to flow continuously, a continuous source of voltage must be present  This is normally in the form of a battery or generator

9.  Breakers and fuses are used to prevent a circuit from pulling too much current and possibly causing a fire.

11.  Fuse: A conductor link with a relatively low melting point. The link will melt when excess current overheats the fuse and will break the circuit.

12.  Series Components connected in series are connected along a single path, so the same current flows through all of the components.current  Parallel Components connected in parallel are connected so that each one has its own pathway of current

13.  If any one of the devices fails, the interrupted circuit will cause the current to stop flowing and none of the devices will operate. (any examples?)  Because each device uses up some of the potential energy, the voltage is divided among all of the devices.

16.  A failure of one device will not interrupt the current flowing through the other devices.  Because of the separate pathways, each device receives the full voltage provided by the source.