Electrical Basics – Parts 1 & 2 was written for electricians and would-be electricians alike to introduce and explain the basic concepts of electricity in the sequence in which these concepts were discovered and developed historically. The series is intended to assist in the training of electricians by providing definitions, examples, and applications of terminology, concepts, and technology used or encountered in the electrical trade. Throughout, the absolute irreducible minimum of mathematics was used while carrying the subject clear through Parallel AC Circuits and Power Transmission Loss Solutions.

]]>**THEN** using only a balance, not a scale, and with only 3 measurements allowed, how could one determine which of these 12 seemingly identical coins is different and whether it is heavier or lighter than the other 11?

See if you can solve this problem

BEFORE you click here to view the solution

And here are a couple late comers I just thought I’d add on:

And a link to a page I call

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