Question

alternating current changes from electrode positive to electrode negative on a cyclic pattern.

true
false

Explanation:

Define alternating current behavior

Using the Alternating Current knowledge point

Alternating current (AC) is an electrical current that periodically reverses its direction of flow. Unlike direct current (DC), which flows continuously in a single direction, AC continuously cycles back and forth.

Relate AC to welding polarity

Using the Welding Polarity knowledge point

In arc welding, polarity is determined by the direction of current flow between the electrode and the work piece. When using alternating current, the direction of the current reverses many times per second (typically 50 or 60 Hz). This means the system continuously alternates between electrode positive (DCEP) and electrode negative (DCEN) in a regular, cyclic pattern. Therefore, the statement is true.

Answer:

• True (Correct answer)
• False