In gas metal arc welding, the power source I is V = 36- and the arc...
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In gas metal arc welding, the power source I is V₁ = 36-— and the arc P 60 characteristics characteristics is V₁ = 2/₁ + 27. Where 'V₂' and 'V' are voltage, 'I' is current and la is arc length in mm. The change in power (VA) of the arc, if the arc length is changed from 3 mm to 4 mm is (a) 2100 (c) 5940 (b) 3840 (d) 7200 In gas metal arc welding, the power source I is V₁ = 36-— and the arc P 60 characteristics characteristics is V₁ = 2/₁ + 27. Where 'V₂' and 'V' are voltage, 'I' is current and la is arc length in mm. The change in power (VA) of the arc, if the arc length is changed from 3 mm to 4 mm is (a) 2100 (c) 5940 (b) 3840 (d) 7200
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