What is the secondary winding connected to?

• A. Connected to the input voltage
• B. Connected to the output/load
• C. Is the rotor
• D. Uses ferromagnetic core only

Answer: (B)

In a transformer, the secondary winding is the output side that delivers power to whatever is connected on the load. It is connected to the output/load so the energy transferred from the primary can be used by the external circuit. The primary is the side connected to the input voltage, not the secondary; the rotor belongs to rotating machines, not transformers; and the ferromagnetic core provides a magnetic path but isn’t what the secondary connects to.