Is current a vector or a scalar?

Answer 1

Definitely current is a SCALAR. Current density, of course, is a vector quantity

Current = charge / time

Both charge and time are scalars

Current density = current / area

Here area is a vector quantity

Hence scalar product of current density and area give scalar quantity i.e. current.

So electric current is a scalar

Of course we assign +ve and -ve sign to currents. It is not because of direction as we do incase of vectors. But it is only algebraic sign.