the open circuit voltage and
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:In a DC arc welding operation, the voltage-arc length characteristic was obtained
as Varc = 20 + 5l where the arc length I was varied between 5mm and 7mm. Here
Vare denotes the arc voltage in Volts. The arc current was varied from 400A to
500A. Assuming linear power source characteristic, the open circuit voltage and
short circuit current for the welding operation are:
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