What term describes the output side of a transformer?

What term describes the output side of a transformer?

• A. Primary winding
• B. Secondary side
• C. Core
• D. Magnetizing branch

Answer: (B)

The output side of a transformer is the secondary winding. When AC is applied to the input side, the changing current in the primary creates a varying magnetic flux in the core, which induces a voltage in the secondary winding through electromagnetic induction. That induced voltage is what supplies the load, so the secondary winding is where the output power appears. The other parts play different roles: the primary winding is where the input voltage is connected; the core provides the magnetic path; and the magnetizing branch is part of the transformer’s no-load model, representing the magnetizing current rather than the output.

The output side of a transformer is the secondary winding. When AC is applied to the input side, the changing current in the primary creates a varying magnetic flux in the core, which induces a voltage in the secondary winding through electromagnetic induction. That induced voltage is what supplies the load, so the secondary winding is where the output power appears. The other parts play different roles: the primary winding is where the input voltage is connected; the core provides the magnetic path; and the magnetizing branch is part of the transformer’s no-load model, representing the magnetizing current rather than the output.