Radiologic Technologist Practice Exam

Which component of the generator transforms DC current into high-frequency AC?

1. capacitor

2. rectifier

3. transformer

4. inverter

The correct answer is: inverter

The component that transforms direct current (DC) into high-frequency alternating current (AC) is the inverter. Inverters play a crucial role in various electrical systems, particularly where it's necessary to convert DC electricity into an AC format that can power devices or be utilized in x-ray equipment. In a radiologic context, the inverter facilitates the conversion needed for advanced imaging systems that operate efficiently with high-frequency AC. This high-frequency power is advantageous because it allows for better control over the exposure times and improved image quality. Capacitors, rectifiers, and transformers serve different functions; capacitors store electrical energy, rectifiers convert AC to DC, and transformers change the voltage level of AC. Each of these components is significant in its own right, but they do not perform the specific function of converting DC to high-frequency AC. Thus, the inverter is the correct choice for this transformation process.