Wall wart current draw

A while back there was a discussion about why wall wart transformers that
were not under load would draw no current. Anyone recall that thread? As I
recall there were some references to the induced currents created by
collapsing magnetic fields etc.

Anyway, I'm trying to either prove or disprove the statement that unplugging
wall warts when not actually using them to power or re-charge your device
will save electricity. My recollection is that it doesn't matter. Right or
wrong?


.

Relevant Pages

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  • Re: Wall wart current draw
    ... As I recall there were some references to the induced currents created by collapsing magnetic fields etc. ... Does it get warm whel left plugged in with no load? ... the stuff they put in a wall wart is NOT going to be high quality. ...
    (rec.crafts.metalworking)
  • Re: Who required that!?
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  • Re: Wall wart current draw
    ... As I recall there were some references to the induced currents created by collapsing magnetic fields etc. ... Copper losses are proportional to the load. ...
    (rec.crafts.metalworking)