In the US, Standard AC Circuits Cycle How Many Times

question 12

Multiple Choice

In the US, standard AC circuits cycle how many times per second?

• A) 60
• B) 110
• C) 220
• D) 115

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Definitions:

Multifidus

A deep spine muscle important for stabilizing the joints within the spine during movement.

Psoas Minor

A small muscle located in the lower back that helps with flexion of the lumbar spine, though it is absent in a significant portion of the population.

Iliac Crest

The upper margin of the iliac bones, which forms the prominent part of the pelvic hip bone.

Lower Lumbar

Referring to the lower part of the lumbar region of the back, which includes the lower vertebrae of the spine.