Parasitic resistance to current flow in a cell due to mechanisms such as resistance from the bulk of the semiconductor material, metallic contacts, and interconnections.
Series system
System where a primary heater preheats water to a given desired general purpose temperature and feeds into another heater.
Series wound
Armature and field of a motor that are connected so that the electrical current passes through one prior to the other.
Serrate
Saw-edged leaf design.
Serrated
(1) Having saw type notches along the edge. (2) Surface with ridges.
Service conductor
The wires that connect the utility company's line to the home's service equipment.
Service connection
The electric wires to the building from the outside power lines.
Service contract
Agreement bought by a homeowner for servicing of household items.
Service drop
The electrical wires which go from the power utility's lines to a building.
Service entrance
Pipe connecting the water company piping to the water meter.
