The shielded metal arc welding machine's voltage output ____ as its current ____.
A) decreases, decreases
B) increases, increases
C) increases, decreases
D) decreases, increases

Question

Quizplus · Accepted Answer

The shielded metal arc welding machine operates on a characteristic known as a "drooping characteristic" or "constant current characteristic." This means that as the current increases, the voltage output actually decreases to maintain a constant current through varying arc lengths and resistances.

The Shielded Metal Arc Welding Machine's Voltage Output ____ as Its