Results 1 to 4 of 4

Thread: Formulas

  1. #1
    Join Date
    Nov 2016
    Location
    Long Island, NY
    Posts
    452
    Post Likes

    Formulas

    15 years ago, I vaguely remember using PI and Ohms law, what for I do not remember. Going through it all again, I don't ever see the PI formula mentioned, I do see Ohms law, but no real specific uses? Does anyone use these for electrical troubleshooting?

  2. #2
    Join Date
    Mar 2013
    Location
    Billington Heights, NY
    Posts
    8,194
    Post Likes
    Pi is not used for electricity except MAYBE for figuring wire diameters.

    Pi is usually for figuring circular areas and volumes.
    Experience - knowing when to get the hell out of the way and plug your ears. "Don't be a sissy. Turn it on!"
    Poodle Head Mikey - "the world is well populated with the unknowing and the uncaring and the stupid."

  3. #3
    Join Date
    Aug 2009
    Location
    Prattville, Alabama
    Posts
    3,021
    Post Likes
    May be asking about E = P/I, or E(volts) = P(power) divided by I(current). Its a variation, or derivative, of Ohm's Law.

    One example of using it would be with heating elements. Where you have two known values and are figuring out the third.

  4. Likes lkapigian liked this post
  5. #4
    Join Date
    Feb 2010
    Location
    montreal
    Posts
    134
    Post Likes
    It may be used for heating if customers want to confirm unit is performing as per spec (been asked this one once)
    Sizing a transformer if you know volt and amperage.
    Sizing a fuse for a transformer

    Many use that I forgot

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.
Comfortech 365