Kirchhoffs Rules

YOUR LINK HERE:

http://youtube.com/watch?v=w92MDi6STXE

Friends! I have prepared for You useful information about the rules of Kirchhoff. Two rules + a task. The first rule is the simplest. The algebraic sum of the current strength at the node is zero . This is a consequence of the law of conservation of electric charge. With the second rule of Kirchhoff, everything is much more complicated. So the first thing You should start with. See how many independent circuits there are in Your chain. Second step. Select the direction of the polygon traversal. You can choose clockwise, you can choose counterclockwise. After that, specify the expected direction of the current in the electrical circuits. Do not allow all electrical currents to flow into the node. Let some flow in and some flow out. It will be easier this way. Make equations according to the second rule of Kirgof ( the algebraic sum of voltage drops is equal to the algebraic sum of EMF), taking into account the sign + or -. If the current direction coincides with the bypass direction, put the + sign before the product of IR, otherwise put the-sign. Before the EMF sign if you are walking along the contours you meet a rise in front of the EMF, put the + sign, otherwise put the-sign. You will see this in the video. What is ascent or descent ? These are conditional concepts in EMF. My designations. In principle, you can say that If the direction of the bypass coincides with the direction of the EMF, put the + sign, otherwise put the-sign . Friends! Don't forget that I have released 170 notes, which You can purchase here https://teespring.com/170-notes-physi... sincerely, Yuri Kovalenok. • #physics #electricalengineering #electrical #electricity #engineering

#############################

New on site