A rectifier for welding has voltage/current characteristics as___
![A rectifier for welding has voltage/current characteristics as___](/img/relate-questions.png)
| A rectifier for welding has voltage/current characteristics as____________.
A. Drooping
B. Rising
C. Static
D. Variable
Please scroll down to see the correct answer and solution guide.
Right Answer is: A
SOLUTION
Drooping V-I characteristic is used on constant current type welding machine. When arc is struck in arc welding machine electoral is essentially in short circuit which would immediately require a sudden of current otherwise machine is designed to Prevent this. A constant current machine is designed to minimized these sudden surges.