Question

plz give me example of current as scalar quantity

Answer 1

A quantity having both direction and magnitude and following vector algebra is called Vector.
If a quantity has both direction and magnitude but follows simple algebra then it is not termed as a vector.
Electricity , even though it has both magnitude and direction, doesn't follow vector algebra.
So it is a scalar not a vector .

For eg. if we add vectors the formula is √(a^2 +b^2 + 2abcosA)
where a and b are vectors and A is the angle between them.

But if you add two current, say 5A and 50A
we simply add them to 55A and do not use the above formula....

So current is not vector but scalar..

HOPE IT HELPS....