It is an example from a textbook. It is a really basic example and the purpose of the example is to show how vector diagram works.
Here is the example:
and this is the vector diagram:
What I don't understand here is why \$I\$ has these coordinates. Shouldn't \$I\$ have coordinates \$ 1.5 + 1.5j \$ because \$ 1.5 \sqrt{2} \angle 45 = 1.5 + 1.5j\$ ?
On this picture it looks like I have coordinates \$ 5 + 5j \$ .
Can someone please help?
Source of pictures: faculty of electrical engineering and computing Zagreb

