In a DC arc welding operation, the voltage-arc length characteristic was obtained as Vre = 20 + 5. arc where the arc length I was varied between 5 mm and 7 mm. Here Vre denotes the arc voltage in arc Volts. The arc current was varied from 400 A tc 500 A. Assuming linear power source characteristic, the open-circuit voltage and the short circuit current for the welding operation are (a) 45 V, 450 A (c) 95 V, 950 A (b) 75 V, 750 A (d) 150 V, 1500 A

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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In a DC arc welding operation, the voltage-arc
length characteristic was obtained as Vre = 20 + 5/
where the arc length I was varied between 5 mm
and 7 mm. Here Ve denotes the arc voltage in
arc
arc
Volts. The arc current was varied from 400 A to
500 A. Assuming linear power source
characteristic, the open-circuit voltage and the
short circuit current for the welding operation are
(a) 45 V, 450 A
(b) 75 V, 750 A
(c) 95 V, 950 A
(d) 150 V, 1500 A
Transcribed Image Text:In a DC arc welding operation, the voltage-arc length characteristic was obtained as Vre = 20 + 5/ where the arc length I was varied between 5 mm and 7 mm. Here Ve denotes the arc voltage in arc arc Volts. The arc current was varied from 400 A to 500 A. Assuming linear power source characteristic, the open-circuit voltage and the short circuit current for the welding operation are (a) 45 V, 450 A (b) 75 V, 750 A (c) 95 V, 950 A (d) 150 V, 1500 A
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