- HOW DO YOU KNOW WHICH IS RIGHT AND LEFT ON A RESISTOR HOW TO
- HOW DO YOU KNOW WHICH IS RIGHT AND LEFT ON A RESISTOR SERIES
> Parallel: the reciprocal of the total resistance after the parallel is equal to the sum of the reciprocals of the resistors.
HOW DO YOU KNOW WHICH IS RIGHT AND LEFT ON A RESISTOR SERIES
> Series: the resistance after series is equal to the sum of the resistors. The series and parallel resistors are the lessons learned in the middle school textbooks, and their typical circuit diagrams are shown below. As shown in the following figure.įilter function: used in conjunction with the capacitor can be constructed as a filter, as shown in the following figure.įilter function V Series and parallel resistors Partial pressure function: after two series resistors are connected in series, the current flowing through two resistances is equal, but the voltage of each resistor is not equal, which is obtained by Ohm's law. Two resistors in parallel together as two branchesĬurrent limiting function: resistor series can limit the size of branch current in the circuit, and prevent the load in the circuit from burning out. Shunt effect: two resistors in parallel together as two branches, will be the current road diversion, as shown below. The main functions of the resistor in the circuit are shunt, current limiting, partial pressure, filter (combined with capacitor use) and impedance matching. When a temperature sensor is designed, a thermistor that is sensitive to temperature can be used to build the temperature of the circuit detection environment. According to the accuracy, it can be divided into 0.1%, 1%, and 5%. The material has a carbon film resistor, metal film resistor, cement resistor, Wirewound resistors according to the function can be divided into thermistors, varistors, photosensitive resistance according to power, 1/16W, 1/8W, W W 1W, integrant, etc. The resistance of 10 meter gauge 17 copper wire with cross sectional area 1.04 mm2 can be calculated as The calculation formula of resistance is: R=U/I. Usually, when a constant resistance is made, its resistance is determined. Ρ = resistivity of the conductor material (ohm meter, Ω m)Ī = cross-sectional area of conductor (m2) R = resistance of the conductor (ohms, Ω) > the cross-sectional area of the conductor II The size of the resistorĮlectrical resistance of an electrical conductor depends on A resistance element is an energy dissipation element that presents a hindrance to the current. The greater the resistance, the greater the hindrance to the current. In physics, the resistance indicates the size of the conductor to obstruct the current. Its unit is Ohm, which is represented by the symbol "Ω".
Its English name is called Resistor, which is often used to express R. Resistance is one of the most common and widely used components in the electronics industry.
HOW DO YOU KNOW WHICH IS RIGHT AND LEFT ON A RESISTOR HOW TO
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