A DC welding power source has a linear voltagecurrent (V-I) characteristic with open circuit voltage of 80 V and a short circuit current of 300 A. For maximum arc power, the current (in Ampere) should be set as______.

A DC welding power source has a linear voltagecurrent (V-I) characteri

1.	A DC welding power source has a linear voltagecurrent (V-I) characteristic with open circuit voltage of 80 V and a short circuit current of 300 A. For maximum arc power, the current (in Ampere) should be set as______.
A.	150
B.	120
C.	179
D.	270
Answer» B. 120

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A DC welding power source has a linear voltagecurrent (V-I) characteristic with open circuit voltage of 80 V and a short circuit current of 300 A. For maximum arc power, the current (in Ampere) should be set as______.

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