What increases when the stickout increases?

What increases when the stickout increases?

• A. resistance
• B. voltage
• C. current
• D. arc length

Answer: (A)

Increasing stickout adds more length of conductor and path from the power source through the wire to the work, which raises the electrical resistance of the circuit. With a constant-voltage MIG supply, that extra resistance causes more voltage drop along the wire and reduces the current at the arc, so resistance is the property that increases as stickout grows. (Arc length does increase with stickout, but the question targets the electrical parameter that rises due to the longer path.)

Increasing stickout adds more length of conductor and path from the power source through the wire to the work, which raises the electrical resistance of the circuit. With a constant-voltage MIG supply, that extra resistance causes more voltage drop along the wire and reduces the current at the arc, so resistance is the property that increases as stickout grows. (Arc length does increase with stickout, but the question targets the electrical parameter that rises due to the longer path.)