id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
4418	units::electron_charge units::current incorrect	mejames7760.atatatat.att.net	Matthias Schabel	"I was trying to implement http://hyperphysics.phy-astr.gsu.edu (Coulomb's Law example) and then determine the acceleration on a single charge ""e"" as a way of learning to use Boost::units.  I was having lots of errors with wrong units which I have finally traced to incorrect dimensions of electric_charge and current.  Please refer to the above link or any physics text book to verify the following.
1. An ""electron charge"" is the base unit, you have ""current"" as a base unit.
2. ""current"" is charge per time which is a derived unit which is measured in amps.
3. ""electron charge"" is measured in number of electrons. A coulomb is the measure of the number of electrons and is 1/e.
4. ""electric_charge"" is an okay term to use.
5. If you swapped electric_charge <-> current you would still be wrong because current would then have charge*time instead of charge/time.
Running Ubuntu 10.04 LTS with Boost 1.40.0"	Bugs	closed	Boost 1.44.0	units	Boost 1.40.0	Problem	invalid	units charge current