Given the following graphic: 
A)What do the asterisks (*)represent?
B)What does the line in the middle of the box represent?
Definitions:
Primary
In electrical systems, the initial or main input side of a transformer or circuit.
Center Tapped
A feature in transformers or electrical wires that allows for the creation of a neutral point by tapping into the middle of the windings or conductor.
Neutral Conductor
The grounded conductor of a power system. It is connected to ground potential and is considered a current-carrying conductor. The neutral is generally white or gray in color.
Equipment Ground
A safety connection designed to protect against electrical shocks by providing a path for fault current to flow to earth ground.
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