Types of Armature Windings The following terms used in connection with armature winding should be kept in mind: (A) Conductor: The length of a wire lying in a magnetic field is called a conductor. It may be made of one or two or more parallel strands. (B) Turn: When the two conductors lying in a magnetic field are connected in series, so that emf induced in them help each other or the resultant induced emf becomes double (assuming full pitch coil) of that due to one conductor, it is knows as a turn. (C) Coil: When one or more turns are connected in series it is termed as a coil. The group of wires or conductors constituting a coil side of a multi-turn coil is wrapped with a tape as a unit. (D) Coil span or coil Pitch: It is the distance measured in terms of armature slots or armature conductors between two sides of a coil. (E) Pole pitch: it is defined as the number of con...