RESISTOR ASSOCIATION: in series and in parallel Enem Class Cuts Physics Antônio
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🎓 Free Enem Course: https://goo.gl/2rebsa 📑 Full summary: http://bit.ly/3zwp6xG ✔️ Mock exam: https://bit.ly/38L4rsj Subscribe to the channel to receive everything about Enem 100% FREE https://bit.ly/37WGBZi /// ABOUT THE VIDEO In this class, professor Antônio José Martins brings up a very recurring topic in Enem exams - the association of resistors. The resistivity of a wire is a quantity that indicates how much it opposes the passage of electric current through it. It is similar to the resistance of a wire, but this concerns the material only. It is indicated by the Greek letter ρ (rho). Resistivity is part of the formula for calculating the resistance of a conductive wire, when we have neither the intensity of the electric current nor the ddp (potential difference). When we talk about resistors, we are referring to electrical devices that, when electrical current flows, exhibit the Joule effect, i.e., they heat up! The electrical installation of a home makes it possible to connect several of these devices at the same time. When several devices are connected in a circuit, we have an association of resistors or resistive devices. To replace all of the devices, we use the equivalent resistor. This equivalent resistor (Req) is a hypothetical resistor capable of replacing the devices in the association. In general, we divide the association into three categories: series, parallel or mixed (this is a combination of series and parallel association). When resistors are connected one after the other, so that they are traversed by the same electrical current, we say that they are associated in series. When resistors are connected in parallel, the electrical current that runs through each resistor has a different value. Questions? Leave them in the comments. ;) ⏱ TIMING / TOPICS 00:00 Introduction 00:15 Association of resistors in series 06:09 Association of resistors in parallel 🔴 WATCH ALSO ASSOCIATION OF RESISTORS: in parallel • ASSOCIATION OF RESISTORS: in parallel... ASSOCIATION OF RESISTORS: in series • ASSOCIATION OF RESISTORS: in series ... ELECTRIC FORCE: what it is, formula, Coulomb's Law • ELECTRIC FORCE: what it is, formula, Law... ❤️ SOCIAL MEDIA INSTA @cursoenemgratuito TWITTER @enemgratuito FACE /cursoenemgratuito/ /// AFTER ALL, WHAT IS THE FREE ENEM COURSE? We are a channel of completely free classes on the topics that most often appear in the Enem and entrance exams. We were created to democratically share content and information about the Enem, helping you get into the college of your dreams ♥ We also have a website with written classes, questions and a study plan to help you organize yourself! Would you like to study with us? 🎓 ACCESS OUR 100% FREE COURSE FOR THE ENEM https://goo.gl/2rebsa
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