Back in 1856, William Thomson a Scots-Irish mathematical physicist and engineer while experimenting with iron pieces discovered a phenomenon called magneto-resistance. This effect was later on used to build a special type of variable resistor known as magneto-resistor. In this article you shall get a brief about a magneto – resistor: its working principle, characteristics […]
Carbon Film Resistor One of the most used “passive devices†in an electric or electronic circuit is undoubtedly the resistor. Since it has wide range of applications they are found in different varieties. According to the type of resistance they offer, these devices are often classified as fixed or variable resistors. However, the resistors, either
Photoresistor – A Detailed Guide While walking through the streets in the evening, have you ever noticed how the street lights turn on automatically as it starts getting darker? Â This automatic switching ON of the street lights are due to the presence of a special type of variable resistor on its circuit. The resistance of
If you are looking for a temperature sensor that is cost effective and accurate, your first choice may be a thermistor. It is a type of resistor whose resistance changes with change in temperature. Â This article deals with the working, types and applications of a thermistor. Lets start! What is a Thermistor? Coined from the
Variable Resistor – Working, Construction, Types & Applications One of the critical pieces in an electric circuit, the resistor is the most omnipresent electronic component. Available in wide varieties, these resistors can be used in various applications. Â Resistors are broadly classified as fixed and variable resistors, according to the type of resistance value they offer.
Potentiometer – Working, Circuit Diagram, Construction & Types Resistor, a small bundle of resistance, is one of the most used basic components in an electric circuit. Mostly used to regulate the current flow by adding/subtracting resistance from the circuit, these resistors are available in many shapes and sizes. These resistors can be broadly classified as
Varistor – Symbol, Working, Types and Applications The small package of resistance, the resistor is used in so many circuits, in so many forms, that it is almost an omnipresent electric component. From the very basic fixed resistors, where the resistance remains unchanged, to different types of variable resistors, whose resistances change according to different
Ballast Resistor – Working, Types, Applications & Uses According to the English dictionary, “ballast†means something that gives stability. Thus when referring to an electrical ballast, we mean an electrical device that plays an important role in maintaining the stability of the electrical circuit. However, the question you may have is how does it provide
Digital Potentiomter – Working, Internal Structure & Applications One of the most common types of variable resistors is the potentiometer. Potentiometer or “potsâ€, are three terminal devices, used to vary the resistance in a circuit. We have dealt in depth about this topic, in our article “potentiometersâ€, if you want to learn about the basics
Resistor, the most basic yet essential passive component of an electronic circuit, is nothing but a device that restricts the flow of current. So why is it called passive? It is called so because it dissipates power rather than generating it in a circuit. Some practical resistors are shown in the image below. In this
Ultimate Guide on Resistivity and Electrical Conductivity We know what the electric wires are made of; they are either made of copper or aluminum. We also know that Gold and Silver would have been a better choice, had they been cheaper. However, the question is what makes them suitable for the same? Why don’t we
A look into the electronic circuit board mostly shows wires with colorful bands, called resistors. These color bands indicate the values of those resistors like the identity card does for us. With these color bands, we can identify the resistive value and its percentage tolerance of a resistor. For large power resistors, the resistor body
The good definition of Pulse Width Modulation (PWM) is in the name itself. It means modulating/varying the width of the pulse (Not the frequency). To best understand what PWM is, let us first see some basic terminologies. Microcontrollers are intelligent digital components which live on binary signals. Best representation of a binary signal is a
In this article, we learn about PN junction diode characteristics in detail – like how to bias a PN junction (Forward & Reverse bias methods), behavior of PN junction during forward & reverse bias setups, how to plot the VI characteristics, what is reverse breakdown and many other essential concepts regarding a PN junction diode.
Whenever someone decides to learn electronics, the first question that comes to his mind may be – “Where shall I begin?“. I would say, one shall begin at a junction 😉 the “pn junction“. We know semiconductor devices like transistors and diodes are the basic building units of any equipment that involves electronics, say tablet
A voltage regulator is one of the most widely used electronic circuitry in any device. A regulated voltage (without fluctuations & noise levels) is very important for the smooth functioning of many digital electronic devices. A common case is with micro controllers, where a smooth regulated input voltage must be supplied for the micro controller
In this article, we are going to learn a little deep about break down characteristics of PN Junction Diode and how “reverse break down” characteristics is put into practical applications. Before getting into the details, lets have a walk through our previous articles. 1. Understanding the PN Junction – is a great article to begin
