A meme has been circulating showing a very messy set of wires with the text “Apply Kirchhoff’s Law.”
At first, it’s obviously just a joke. But I started wondering what would actually happen if we took the idea seriously.
Kirchhoff’s Current Law (KCL) describes the relationship between currents at a node, while Kirchhoff’s Voltage Law (KVL) describes the relationship between voltage rises and drops around a closed loop.
The interesting problem with a real-world tangled wiring setup is that, from a photograph alone, we may not even know the actual circuit topology. Which wires are electrically connected? Which are separate circuits?
So perhaps the joke isn't really that Kirchhoff's laws are incapable of handling a complicated circuit. The difficult part is first figuring out what the actual circuit is.
* What information would an engineer need from this physical wiring before converting it into a circuit diagram?
* What would be the first thing you would do as an engineer if someone handed you this physical wiring and simply said, “Now Use your engineering skill & calculation"
Sources 👇🏼
1.) Kirchhoff law meme
Source: Pinterest https://pin.it/119owU7JX
2.) Kirchhoff's Law practical examples.
https://zbotic.in/kirchhoffs-voltage-and-current-laws-practical-examples/
3.) What is Thevenin's Theorem ?
https://www.allaboutcircuits.com/textbook/direct-current/chpt-10/thevenins-theorem/
4.) What is Circuit analysis ?
https://www.khanacademy.org/science/electrical-engineering/ee-circuit-analysis-topic