A simple power transformer essentially consists of how many windings?

A simple power transformer fundamentally consists of two windings, commonly referred to as the primary winding and the secondary winding. The primary winding is connected to the input power source, where it receives electrical energy, while the secondary winding is connected to the load, delivering the transformed electrical energy.

The interaction between these two windings occurs through electromagnetic induction. When alternating current flows through the primary winding, it creates a magnetic field that induces a voltage in the secondary winding. The ratio of turns between the primary and secondary windings determines the voltage transformation—this is the basis of how transformers operate.

Understanding that a basic transformer requires just two windings is crucial for comprehending various applications where transformers are employed to adjust voltage levels for efficient power distribution and use.