topmcr2004 topmcr2004
  • 14-05-2020
  • Engineering
contestada

In alternating current, how often does the current alternate between negative and positive? 120 times per second 60 times per second 90 times per second 180 times per second

Respuesta :

oddawsomeman2004
oddawsomeman2004 oddawsomeman2004
  • 01-02-2021

Answer:

For Shielded Metal Arc Welding (SMAW) it would be 120 times per second.

Answer Link

Otras preguntas

Simplify x-7=0 i think it's x=7/2 (fraction) but I might be wrong
Simplify. 62+42 12 20 52 100
Is a solution with a pH less than 7 acidic, alkaline or neutral?
From what point of view is the story “The Tell-Tale Heart” told?
A square tablecloth covers 6 square feet. What is the approximate length of one side of the tablecloth?
How much time does it take for a bird flying at a speed of 45 miles per hour to travel a distance of 1,800 miles?
Swin Cash says, “Basketball gave me the vehicle to inspire and empower.” Who do you want to inspire and empower? Like Swin Cash, do you have a passion that allo
this is iu need help with
what legal limitations did women face in the 19th-century and what gender-inequality issues do women face today?
4. (-5, 2) and (-5, 6)