primary winding

Found in Anh - Anh (Wordnet)

Definition Noun : - The main input coil in a transformer : A "primary winding" is the coil of wire in a transformer or induction device that is connected to the source of electrical power. A changing electric current in this coil creates a changing magnetic field, which then induces a voltage and current in a separate, secondary coil. Usage The term is used specifically in the context of electr...