AWG (American Wire Gauge)

A standardized wire sizing scale used in North America. The scale runs inversely to wire diameter, so a lower AWG number means a thicker wire. 24 AWG is a common coil winding wire. 22 AWG is one step thicker and has roughly half the resistance per unit length of 24 AWG. Thicker wire reduces resistive losses and heat generation in the coil, allowing more current to flow at the same voltage. In PEMF coil design, wire gauge is one of the primary variables controlling coil resistance, heat, and maximum drive current.