why is the Right Hand Rule in electromagnetism true?

Question

Here is a description of the right hand rule – https://www.khanacademy.org/test-prep/mcat/physical-processes/magnetism-mcat/a/using-the-right-hand-rule

I understand THAT this is true, and have even directly seen experimental evidence that it is true, but what i cannot wrap my brain around is WHY this is true.

So please internet, why is the field always to the right?

In: Physics

Answer 1

Because it’s defined that way. We could have just as easily built the mathematical structure such that there was a ‘left hand rule’ – all that we’d be doing is reversing some polarities.