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It is said that the current flowing through the printed circuit board is 1A for a 1mm wide pattern, but I checked to see if that is actually the case. The thickness of the printed circuit board is 1.6mm, and the thickness of the copper foil is 1oz (35μm). The wiring is only on one side. ✅Thank you Altium for providing this! Try Altium circuit CAD (25% off) https://bit.ly/ichiken_altium Free trial version https://bit.ly/altium-trial How to use https://bit.ly/altium-how2use After receiving the discount code, purchase at https://digitalsales.altium.com to receive the discount! ◤SNS Links◢ You can buy Ichiken's electronic products and T-shirts here (associate link) https://amzn.to/3QxN8Av Official LINE (for project proposals, etc.) https://lstep.app/pgx0aZX Official website (for business inquiries, etc.) https://bit.ly/ichiken-ad Official blog https://ichiken-engineering.com/ Twitter / ichiken_make ★Equipment used (including Amazon associate link) PX-280 soldering iron (Rakuten) https://a.r10.to/hwxtgM PX-280 soldering iron (Amazon) https://amzn.to/3gH1YD9 0:00 About printed circuit boards2:48 Preliminary experiment3:50 Trying to pass current through a printed circuit board5:18 Experiment 1: What happens if you pass current across a 1mm width? 9:56 Resistance of printed circuit boards 12:02 Experiment 2: What happens if you change the thickness of the copper foil? 13:47 Experiment 3: What happens if you dissipate heat with a pattern? 15:16 Experiment 4: What happens if you apply solder to the pattern? ★Business inquiries: [email protected] music: Kevin MacLeod, The Big Beat 80's. Learn more about PR → https://bit.ly/ichiken-ad