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Yes, you are doing something wrong. It is very difficult for it to be greater than one unless you have some energy being generated within the load. Power factor is much easier measured using a scope
Dear Lisa: The first thing you have to do is find out what kind of reference they will give you and who gives the reference. Find a friend who is a professional that either calls from their cell phone
Yes, of course. The history is well known as to why 60 Hz was chosen. In the very early days there were many power systems and many voltages; even DC was used by some of the earliest power distribution
TJ, Congratulations on the interview! I think those are both excellent questions; they're strong, specific, and show that you have a knowledge of this company. Those will impress the potential employer
Your question is very broad. What do you mean when you say voltage "devices"? There are many. Are you just talking about voltmeters? or Ammeters? or both? I had a similar question a few years ago

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