why direction of current is opposite to the direction of flow of electrons

Question

mathslover · Answer

Talking about : 

i) Direction of Current : 

As we know that, current flows where there is potential difference or from higher potential to lower potential. Now, note that : positive has always more potential than negative. So , conventional current flows from positive to negative.

ii) Direction of Electrons ( $e^-$ )

Electrons will also flow from higher concentration to lower concentration. As, electron carries negative charge, so higher concentration of electrons will be at "Negative" terminal while Lower concentration will be at " Positive" Terminal. Hence, the electrons flow from negative to positive direction. 

That's because the direction of current is opposite to the direction of flow of electrons.

vincent-lyon.fr · Answer

Because when conventional direction for current was decided, it had not been discovered yet that electrons were responsible for conduction in metals and that they were negatively charges particles.

anonymous · Answer

exactly.. its just a convention.

mathslover · Answer

Well, it can also be mathematically proved.