Go read Kirchhoff's Laws. Then, try this question. It is not hard.
1 Ampere flows into the web at the very top. 1 Ampere flows out of the web at the very bottom.
There is a node at the very center of the web. It has 3 arrows pointing into it and 3 arrows pointing out of it. The arrows point in the assumed current directions. If a current flows opposite to its assumed direction, then it will have a negative value. Add all the inward arrows values and call the sum P. Add all the outward arrows and call the sum N. What is the value of P-N?
The answer is 0.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Kirchhoff's current law states the total current at a node is 0. That is the answer.