What is the electrical charge of the anode?

• A. Negative
• B. Neutral
• C. Positive
• D. Variable

Answer: (C)

The anode is positively charged in an x-ray tube. This positive charge is essential for the function of the x-ray tube as it attracts the negatively charged electrons emitted from the cathode. When these electrons travel across the tube and collide with the anode, they not only create heat but also generate the x-rays that are ultimately used for imaging.

The positive charge of the anode is a critical feature in the design of x-ray equipment. It facilitates the movement of electrons towards it, enabling the production of x-rays through fast-moving electrons impacting a metallic target. This process exemplifies how electric charge plays a pivotal role in the operation of radiographic technology.