3
\$\begingroup\$

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:

https://imgur.com/AjKmeH0

and this is the vector diagram:

enter image description here

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

\$\endgroup\$
1
  • \$\begingroup\$ Please add a credit for the images (since it seems that they were created by someone else). \$\endgroup\$ Commented Jul 21, 2019 at 17:20

1 Answer 1

4
\$\begingroup\$

I think your understanding is correct.

The only thing I can think of is that the coordinates are for voltage and the current is superimposed on the Re (real) and Im (imaginary) voltage axes but is using a different (red) scale which is not shown.

\$\endgroup\$

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.