Which statement about a tapped transformer is correct?

A tapped transformer is designed with multiple terminal taps along its winding, allowing for adjustments to the output voltage. This design provides flexibility in matching the voltage requirements of different loads or applications. By using different tap points, the transformer can effectively change the number of turns in the winding that the circuit is using, thus regulating the voltage output without the need for additional components, like variable resistors or switching devices.

This adaptability is particularly beneficial in industrial settings where varying voltage levels are necessary for different machinery or equipment. The ability to step up or down the voltage output using taps contributes to the efficiency of power distribution.

The other options don’t accurately reflect the characteristics of a tapped transformer. It does not have a fixed voltage output; instead, it provides multiple voltage options through its taps. Additionally, tapped transformers operate on alternating current (AC) rather than direct current (DC), as transformers rely on changing magnetic fields created by AC for their operation. While tapped transformers do have windings as part of their construction, they do not typically consist of a single winding but rather have one or more windings with tap points for voltage adjustments.