You don't always need to use an ohmmeter to find out the resistance of a resistor. If your resistor has color bands on it, you can tell how much resistance it's packing just by simply observing it. Now that you know what resistor you have, it's the right time to solder it into y...
Photo: A typical resistor.What's going on inside a resistor? If you break one open, and scratch off the outer coating of insulating paint, you might see an insulating ceramic rod running through the middle with copper wire wrapped around the outside. A resistor like this is described as ...
You now know what a pull-up resistor is and how to use one. Some microcontrollers such as Arduino boards, and SBCs such as the Raspberry Pi, have internal pull-up resistors that you can trigger in the code in place of external pull-up resistors. Solidify Your Knowledge Through Experience ...
Quite a few switching regulators are set for a certain voltage output, but most of them aren’t, and they will want you to add a resistor divider to know what to output. There’s usually a formula for resistor divider calculation, so, pick a common resistor value, put it in as one ...
We wanted to know exactly how a Cold Heat tool works, so we took one apart. In this article, you'll learn Cold Heat's secrets, as well as what happened when we tried to use ours. Soldering Advice Soldering is a fundamental skill for anyone who works with electronics. It's a basic ...
What is a Shunt Resistor? A shunt resistor (or shunt) is defined as a device that creates a low resistance path to force most of theelectric currentthrough the circuit to flow through this path. In most cases, a shunt resistor is made up of a material having a low-temperature coefficient...
To understand how circuit breakers work, it helps to know how household electricity works. Electricity is defined by three major attributes: Voltage Current Resistance You've probably heard of low-voltage circuit breakers and medium-voltage circuit breakers, but what is voltage? Voltage is the "pre...
Step 3:To discharge the capacitor, use a 20,000-ohm, 2-watt resistor -- an inexpensive wire unit available at most electrical supply stores. Fasten the probes of the resistor to the terminals of the capacitor; this discharges the capacitor. If the capacitor has three terminal posts, connect...
It relies on the principle of resonance, where an LC (inductor-capacitor) or RC (resistor-capacitor) circuit is used to determine the frequency of oscillation. The most common types include the Colpitts, Hartley, and RC Phase Shift oscillators. Relaxation oscillators: In contrast, relaxation ...
A SIMPLE explanation of Pull-Down Resistors. Learn what a Pull Down Resistor is, its working principle, how to calculate pulldown resistance, and the applications of Pull-Down Resistors. We also discuss how ...