A resistividade elétrica, resistência elétrica ou resistividade é simplesmente uma característica específica de cada material que define o quanto ele se opõe à passagem de uma corrente elétrica. Abaixo uma tabela periódica com a resistividade elétrica dos elementos químicos. Resistividade Elétrica dos Elementos Químicos SalvarContinue reading..
Tag Archives: Resistor
Os componentes eletrônicos podem ser passivos ou ativos, os componentes passivos são os componentes eletrônicos que não aumentam a intensidade de uma corrente ou tensão de um circuito. Eles são também chamados de componentes básicos. Há quatro grandezas físicas de interesse para a eletrônica que são: voltage, flow, carga e corrente. Duas das grandezas físicas são definidos em termos das outras duas. (Atual é ...Continue reading..
Supply Voltage Volts Reverse Voltage LED Volt Ohm Resistor limiter The online calculator current limiting resistor for LED is simple to use, ela foi criada para LEDs de 20mA ( 3 mm and 5 mm) , for the value of the limiting resistor you need to enter the supply voltage and reverse voltage LED. ...Continue reading..
I'm starting to write an e-book in which I intend to teach basic electronics who is starting. I'll try to use simple language to try to achieve those users without affinity with the area. It will not be like any electronics course Senai, will not delve, but to give a basic understanding, enabling any user to understand a little electro-electronic, ...Continue reading..
For many who really find it hard to learn to read the colors of resistors without a special tool, all the time or have to go online to see a color table. Here's a solution! Uma régua circular cores calculating resistor 4 tracks. This color table resistor is a type of circular slide rules. And it is a ...Continue reading..
For those who work primarily with RF and audio, attenuator is an indispensable tool. We will show in this article a table resistors to build a fixed attenuator type “More” or “T” that are very simple and its impedance is 50 ohm. Also post a variable attenuator to 131 dB com chaves. What is an attenuator Attenuator A ...Continue reading..
This tool we are providing is a calculator that converts the color code for resistors Ohms (AZ), since the colors of the resistor tracks determine the value of its resistance in Ohms. These values have been color-coded, is necessary to know the color code for reading the values of the resistors. The color code ...Continue reading..
How to calculate the value in ohms of a resistor 5 tracks is now easy, There is an online calculator to Color Code Resistor 4 or 5 tracks. This calculator converts resistance values in an easy and practical, it can convertes the colors in ohms and vice versa, to convert the value to the colors, first you ...Continue reading..
This is a pretty cool idea and simple to store Resistors orderly. I usually use plastic pots, used in these mayonnaise, but this idea of using Ziploc bags as binder, makes it much easier to find the resistor value and also their storage. The advantage is that you can organize your resistors ...Continue reading..
This is one of the items you will say, because I did not think of it before, an easy fast and safe to get a resistor with accuracy 100%. The technique is simple, you just have a resistor slightly below the value that you want to reach, example, a resistor of 9.8k or 9.9k to reach 10K absolute, with ...Continue reading..