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I loved these simple rules

March 12, 2015 By Øyvind Nydal Dahl Leave a Comment

Kircchoffs Law of Voltage“What goes up must come down”

and

“What goes in must come out”


These rules describe two fundamentals laws of electronics in a way that is simple and easy-to-remember.

It was Dave, one of my readers, who wrote me this simple way of remembering Kirchoff’s laws of voltage and current.

“What goes up must come down”

In a circuit with a 5 volt source, the 5 volts are divided over the components in that circuit. You never have any “spare voltage”.

“What goes in must come out”

If you have 3 milliampere (mA) going into a component, then you have 3 mA coming out of it too. If you have 5 mA going into several branches, when the branches connect again, the total current from the branches equals the 5 mA that went into them.

Thanks for this tip Dave.

Don’t fall into the trap of only reading about electronics. To become good, you need to build electronics. I started my website to inspire you to build electronics. I wrote my ebook as a practical step-by-step approach to get started. Learn more here:

https://www.build-electronic-circuits.com/products/getting-started-with-electronics-ebook/

Keep on Soldering!
Oyvind

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