a) The voltage – length characteristics of a DC arc is given by V=20+30L, where V is the arc
voltage and L is the arc length in cm. Determine open circuit voltage and short circuit for arc
length ranging from 3 to 5 mm and current ranging from 200 to 400 Amp during welding
operation.
Answers
Answered by
0
In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
Similar questions