Final answer:
The depth and width of the groove in carbon arc cutting are controlled by factors such as current, speed, electrode angle, and distance between the electrode and workpiece.
Step-by-step explanation:
The depth and width of the groove in carbon arc cutting are controlled by various factors. One important factor is the amount of current used. When a higher current is used, the groove depth and width will be larger. Another factor is the speed of the cutting process. Faster cutting speeds tend to result in shallower and narrower grooves. Additionally, the angle of the electrode and the distance between the electrode and the workpiece can also affect the groove dimensions.