Which of the following describes a transformer with a greater number of wire turns on the primary side compared to the secondary side?

A transformer with a greater number of wire turns on the primary side compared to the secondary side is known as a step-down transformer. This type of transformer decreases voltage from the primary coil to the secondary coil, resulting in a lower output voltage.

In a step-down transformer, the relationship between the number of turns and the corresponding voltage is based on the transformer equation: the voltage across the secondary coil is proportionate to the ratio of the number of turns in the primary coil to the number of turns in the secondary coil. Therefore, when there are more turns in the primary coil than in the secondary coil, it leads to a reduced voltage across the secondary compared to the primary.

This concept is fundamental in electrical systems, where step-down transformers are often used to convert high voltage power from transmission lines to lower voltage levels suitable for consumer use. Understanding this principle is crucial for effectively applying transformers in various electrical and radiographic systems.