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Effect of transformer

  1. Apr 5, 2014 #1
    I have a transformer AC/AC which says that the ingoing effect is 27W and the outgoing effect is 20VA.

    Wich means it loses about 7 J every second to heat. (?)

    Any idea as to why it is written as VA instead of W on the outgoing line?
     
    Last edited: Apr 5, 2014
  2. jcsd
  3. Apr 5, 2014 #2

    CWatters

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    Google "What is the difference between VA and W" without the quotes.
     
  4. Apr 5, 2014 #3
    Thanks:)
     
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