The voltage-length characteristic of a direct arc in an arc welding process is V = (100 + 40l), where l is the length of the arc in mm and V is arc voltage in volts. During a welding operation, the arc length varies between 1 and 2 mm and the welding current is in the range 200-250 A. Assuming a linear power source, the short circuit current is ____ A.

The voltage-length characteristic of a direct arc in an arc welding pr

1.	The voltage-length characteristic of a direct arc in an arc welding process is V = (100 + 40l), where l is the length of the arc in mm and V is arc voltage in volts. During a welding operation, the arc length varies between 1 and 2 mm and the welding current is in the range 200-250 A. Assuming a linear power source, the short circuit current is ____ A.
A.	324.6
B.	424.6
C.	265.6
D.	None of these
Answer» C. 265.6

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