Electronics
Beginner Friendly Kits That Most Newbie Used In Electronics
Since electronics were created, electronic projects have become one of the most popular hobbies that existed. While the tools and components have become so advanced these days, the enthusiasm and fascination for the hobby itself remain true as ever. With
Charging and Discharging a Capacitor
Charging and discharging are the two main effects of capacitors. In this article, you will learn about charging and discharging a capacitor. When a voltage is applied on a capacitor it puts a charge in the capacitor. This charge gets
How Charge is Stored in a Dielectric?
[et_pb_section admin_label=”section”] [et_pb_row admin_label=”row”] [et_pb_column type=”4_4″][et_pb_text admin_label=”Text”]It is possible for dielectric materials such as air or paper to hold an electric charge. This is because free electrons cannot flow through an insulator. However, the charge must be applied by some
Open Loop and Closed Loop Control System (4 Practical Examples Included)
The open-loop control system and closed-loop control system are the two types of control systems that you will learn in this article with the help of 4 practical examples from your daily life. Before going to the details, you must
Miniature cells and Batteries – Silver Oxide, Mercury and Lithium Cells
In recent years, cells and batteries—especially cells—have become available in many different sizes and shapes besides the old cylindrical cells, transistor batteries and lantern batteries. In this article, you will learn about three types of miniature cells and batteries. Silver
Types of Electric Current – Steady (DC), Varying & Alternating (AC) Current
The directed flow of free electrons (or charge) is called the electric current. The electric current may be classified into three main types: Steady current (DC Current) Varying current Alternating current (AC Current) Read: What are Current and Voltage? Steady
Capacitors and Capacitance – Working, Unit, Types and Specification
In this article, you’ll learn about electrical components that oppose the flow of AC by temporarily storing energy as electric fields. These devices are called capacitors, and their action is known as capacitance. This article discusses capacitors and capacitance. By
Constant Current Driver Design based on LM317
Using a resistor to limit the current can be used for small LEDs. For such low power LEDs, where the supply current is not critical it works okay. But for high-power Light Emitting Diodes, a better way is to use
What Are Current, Resistance and Voltage?
Voltage, current, and resistance are three properties that are fundamental to almost everything you will do in electrical and electronics engineering. They are intimately related. In this article, we used water in a river analogy to explain what is current,
How Multicolor RGB (Red Green Yellow) LEDs Work?
A Light Emitting Diode that emits one color when forward biased and another color when reverse biased is called a multicolor RGB LED. Related Article: Working of Light Emitting Diode (LED) One commonly used schematic symbol for these LEDs is shown
Working of Light Emitting Diode (LED)
A light-emitting diode (LED) is a diode that gives off visible light when forward biased. Light-emitting diodes are not made from silicon or germanium but are made by using elements like gallium, phosphorus and arsenic. By varying the quantities of these
Arduino DC Digital Voltmeter
A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital voltmeters give a numerical display
Types of ROM | PROM, EPROM, EEPROM, Flash EPROM & Mask ROM
What is ROM? ROM stands for Read-only Memory. It is a type of memory that does not lose its contents when the power is turned off. For this reason, ROM is also called non-volatile memory. Because ROMs are deployed in
Controlling a Servo Motor with Arduino
A servomotor is also defined as a rotary actuator that allows for very fine control of angular positions. This article explains controlling a servo motor with Arduino in detail. Many servos are widely available and quite cheap. Servos can drive
Potential Difference and EMF: Are they Same?
In this article, you will study the concept of electric potential, potential difference (PD) and electromotive force (EMF) and the difference between them. Just as a body raised above the ground has gravitational potential energy, similarly, a charged body has
Different Types of Capacitors and their Uses
Basically, a capacitor is formed from two conducting plates separated by a thin insulating layer. There are different types of capacitors that are manufactured in many forms, styles, and materials. Understanding the basics of them helps you to choose the capacitor
Arduino based Automatic Light Controller
The automatic light controller offers energy saving and convenience in the areas with a photosensor (LDR). LDR senses the ambient light conditions in the surrounding area and switches ON-OFF the lighting load. The darkness level in the surrounding is settable.
Difference b/w Microprocessor and Microcontroller
The term microprocessor and microcontroller have always been confused with each other. Both of them have been designed for real-time application. They share many common features and at the same time, they have significant differences. Both the IC’s i.e., the
How to Make a Digital Lock Using Arduino?
Digital code locks are most common in security systems. An electronic lock or digital lock is a device which has an electronic control assembly attached to it. They are provided with an access control system. This system allows the user
Design a Power Supply Circuit – Simple to Complex
No electronics can run without power, to be precise a low voltage DC power, and a power supply unit is a device which is specifically meant for fulfilling this purpose. Here we cover complete details on how to design
Stroboscopic Effect in Fluorescent Lamps
The Stroboscopic Effect in Fluorescent lamp is a phenomenon which causes running or moving equipment to appear stationary or appear to be operating slower than they actually are. Fluorescent materials when subjected to electromagnetic radiations of a particular wavelength, get
An Introduction to the Arduino for Beginners
What is Arduino? Arduino is an open-source platform used for building electronics projects. Arduino consists of both a physical programmable circuit board (often referred to as a microcontroller) and a piece of software, or IDE (Integrated Development Environment) that runs
Insulators, Conductors and Semiconductors (with Band Diagram)
Solid state materials can be classified into three groups: insulators, semiconductors conductors. Insulators have no free charge carriers available with them under normal conditions. Conducting materials have plenty of free electrons available for electric conduction. A semiconductor material is one
29 Important Electrical Interview Questions you must Go through
Nervous about an upcoming Electrical Engineer interview? Check out this well-curated list of frequently asked Electrical interview questions and answers. 1. What is a 2 phase motor? A two-phase motor is a motor with the starting winding and the running