What device in an x-ray machine is designed to change voltage levels?

The device in an x-ray machine that is designed to change voltage levels is the transformer. A transformer is essential in the operation of x-ray machines because it allows for the modification of voltage from the incoming electrical supply to the high voltages needed for x-ray production.

In an x-ray tube, high voltage is crucial as it accelerates the electrons from the cathode to the anode, which is where x-rays are generated when the high-speed electrons collide with the target.

Transformers work based on electromagnetic induction to increase or decrease voltage, which is vital in ensuring that the x-ray machine operates safely and effectively. The ability to control voltage levels is fundamental not just for the generation of x-rays but also for maintaining safety standards in dental practices, thereby protecting both patients and personnel from unnecessary radiation exposure.

While a circuit breaker protects the circuits from overloads, resistors alter current flow within a circuit, and capacitors store electrical energy, none of these components are specifically designed for changing voltage levels in the context of x-ray machine operation.