- #1
I doubt there is miscalculation, because the book had already given the answer key.You did the calculation - if you read the diagram correctly you set the [+] terminal to have a higher voltage than the [-] terminal. The minus sign means that the terminals are drawn the wrong way around.
As to "why", you may have done the calculation wrong or maybe that's just the way the physics works out for that configuration.
Homework Statement
Hi. I have an electric circuit attached below. The question is to find the value Vg in order for the interconnection to be valid. The answer is -2V.
My question is, why is the voltage minus?
i_{b}=8A, V_{x}= i_{b}/4 = 8/4=2V
Oh. You mean they are in opposite direction. So the current i_{b} is negative, right?