The above Ad will no longer appear after you Sign Up for Free!


1. When used as an adjective referring to a connector, indicates a plug that can only fit one way in a receptacle. Most often refers to a NEMA 1 two prong "Edison" plug with the neutral blade slightly wider than the hot (5/16" vs. 1/4").


See WikiAnswers - If an AC reverses direction 60 Hz then why are there different-sized receptacle slots for hot and neutral since v and i are alternating direction each half cycle for more information.

2. Physics, relating to the distribution of light rays. See Classification of Polarization.

This page has been seen 565 times.

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice