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We all know about the losses caused by leaving wall warts plugged in when not in use (and TVs, etc.), but do these outlets have the same issue?
http://www.homedepot.com/buy/leviton-15-amp-tamper-resistant-combo-outlet-usb-charger-white-r02-t5630-00w.html#.UNSNc2me78M
http://www.homedepot.com/buy/u-socket-15-amp-ac-standard-wall-duplex-outlet---white-with-built-in-usb-charger-ports-ace-7169.html#.UNSOHmme78M
There are several different types. This one references built-in electronics to sense this and that, which presumably requires some power. Does anybody know the comparison? Along the same lines - does my new phone charger (small block, usb connection to mini usb) have the same issues as the old ones? There doesn't seem to be enough room for a large transformer in there. I don't know if they're smaller or if it's a new technology.
Thanks,
jg
--
Joshua Gates
Physics Faculty
Tatnall School (Wilmington DE)
JHU Center for Talented Youth
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