Why is current a scalar?

Question

Although current has both direction and magnitude why is it treated as scalar?Are there any other scalars like this?

Answer 1

Current is a scalar because of its definition. It is defined as the AMOUNT OF CHARGE that passes blah blah blah (through unit area per unit time).

I'm trying to think of an example of other sclalars that might "look" like vectors. Maybe pressure - enough people get confused over it too.

Answer 2

Err...
It doesn't really have direction, it is just a quantity (often measured in amps). It can have a negative value, though - so if that's what you mean by "a direction" the answer is that it really doesn't have a "direction". It is completely represented by a single number, so it's a scalar.

Answer 3

present day isn't a vector volume because it does no longer obey the regulation of vector addition. For a volume to be vector, it ought to obey the regulation of vector addition. some human beings argue that present day have direction. Does the water flowing interior the pipe have direction? more advantageous of all, is the move of water is a vector volume? In A.C. we analyze the section massive difference. it is a comparative study in reality. bodily, the present and emf donot have direction. so as that they are scalar volume. we in many circumstances do a mistake by making use of in view that present day have direction. We evaluate the section in reality inorder to narrate it to a uniform ciucular action with a view to simplify our study ( as we've achieved in case of straightforward harmonic action)

Answer 4

afaik, scalar because the flow of current can be referenced as movement of negative electrons along the path or it can be referenced as the movement of the positive electrons too.