Resistors the Physics content that falls the most in the Enem

In summary, the resistor is a small device that transforms electrical energy from an appliance into thermal energy. This conversion takes place through the so-called joule effect. If we think of a conventional house, there are several devices for daily use with resistors: showers, microwaves, light bulbs, irons, televisions, radios, fans, among other electrical devices. In addition to converting from one type of energy to another, resistors also control the amount of electrical current within a given circuit. There are two types of resistors: fixed resistance, with constant value, and variable resistance, with changing value. The content of resistors is among the most charged in the National High School Exam.

The most charged Physics topics in Enem are

Energy, work and power; Waves; Mechanics; acoustics; Calorimetry; resistors. In this article, you will learn more about resistors. Check out: What are resistors in Physics? Ohm’s 1st and 2nd Law association of resistors Enem questions about resistors for you to train What are resistors in Physics? Resistors are devices capable of transforming France Mobile Number List electrical energy into thermal energy and also of changing the potential difference in a given part of the circuit. The representation of a resistor in an electrical circuit is usually in the following ways: resistors 1 THE COLOR CODE OF THE RESISTORS Resistors have different and specific values. Therefore, in order to be able to identify the resistance value of the resistor, without the need for specific devices, a color table was established, in which there is a correspondence between the color.

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This is because these two laws determine

That the electric current in a conductor is directly proportional to the applied potential difference. Created by the German physicist Georg Simon Ohm, these laws constitute the fundamental principle for analog electronics. Through these two laws, the German physicist proved that three electrical quantities – voltage, current and resistance – are directly link to each other. Thus, one of his postulations is that the B2B Fax Lead electric current flowing through a conductor is proportional to the voltage applied at its terminals. Georg Ohm arrived at such conclusions through experiments with different types of conductors. According to the first Ohm’s Law, the electric current is directly proportional to the difference in applied power. According to the second Ohm’s Law, it states that the electrical resistance of the conductor is directly related to the constitution of the material and is proportional.

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