In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.

Feb 24, 2012 · A transformer is defined as a passive electrical device that transfers electrical energy from one circuit to another through the process of electromagnetic induction.

Nov 17, 2025 · A transformer is a static electrical device that transfers energy between circuits using electromagnetic induction. It changes AC voltage levels (step-up or step-down) while maintaining the …

May 22, 2026 · What is a transformer? A transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing …

Transformers are electrical devices consisting of two or more coils of wire used to transfer electrical energy by means of a changing magnetic field.

5 days ago · In a transformer, when alternating current (AC) flows through the primary winding, it produces a continuously changing magnetic flux around the coil. This magnetic field passes through …

Jul 3, 2007 · While leading a relatively normal teenage life and trying to get the "hot girl" of his dreams Mikaela Barnes (Megan Fox), Sam is swept into an invasion of Earth by the evil Decepticons …