"Cold current" may be caused by novel magnetic subatomic interaction

[kmarinas86]

The directions of the magnetic fields in the above diagrams are depicted backwards. In the attached image is a comprehensive array of rules that apply to both "conventional current" (consisting of + charges) and "electron current" (consisting of - charges).

[MileHigh]

There are two ideas in the previous post that will lead to confusion.

1.  There is only a right hand rule, there is no left hand rule.  It doesn't matter if it's conventional current or electron current, you still point your thumb in the direction of the conventional current to see the direction for the magnetic field lines.

2.  The fingers don't represent the "circular orientation of the north pole."  That's a concept that doesn't make sense, there is no orientation for a north pole or a south pole when you look at the magnetic field around a wire.  The magnetic field around a wire is the classic example illustrating how there is no true north pole or south pole.  There are just magnetic field lines that have a direction and travel in closed loops.

[lancaIV]

http://en.wikipedia.org/wiki/Fleming's_left-hand_rule_for_motors


http://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=28&ND=3&adjacent=true&locale=en_EP&FT=D&date=19920507&CC=DE&NR=4035445A1&KC=A1


Sincerely
              CdL

[tinman]

It makes sence that there would be a left hand and right hand ruel,as although one wire may be of a positive potential,its a mater of wether you are drawing from it,or sending power to it-so although positive,the current would be flowing in a different direction,depending on circumstance.
And as the above link show's-the motor and generator.

[MileHigh]

CdL:

Yes, you can always find a string of text if you do a search that makes it sound like you are making a point.  Do you see anything in the graphic in reply #10 about motors and generators?  The answer is you don't.

The discussion is about the magnetic field in a wire, and in that context there is only a right hand rule.

MileHigh