current has both magnitude as well as direction but still it is a scalar quantity why?

current is a scalar b coz it does not follow the laws of vector addition.For more information refer H.C VERMA part 2

Approved

it is so bcz it does not follow the laws of vector addition pls approve

Approved

current density is a vector.It is defined as: let J be rate of flow of charge w.r.t. time(in Amperes) across a surface, and let A be the surface. current density=(J·A)(n/lnl), where n is a vector normal to surface,

In electrical circuits, the concept of charge density is irrelevant.in an electrical circuit, one is interested only in the topology of the network and not the geometry. The spatial direction of current does not matter. What matters is: in which one of the two possible opposite "ways" the current is moving.Change in network geometry does not matter, as long as the network topology is the same.

Approved