Cant understand this line in the book(semiconductor nightmare 3)

[nhrock3]

what is n*v*dt*A?
v*dt is a certain distance
there is no n*v*dt electrons
the number of electrons is n
n*v*dt*A is just some volume multiplied by n
its not the amount of electrons.

 

[uart]

n*v*dt*A is just some volume multiplied by n

Yes, but remember that "n" is the number of electrons per unit volume.

 

[nhrock3]

thanks:)