Enrollment to college is a wonderful experience with a lot of learning, development, and one step closer to your future aspirations. But it has its fair share of difficulties as well, sometimes it seems to be overwhelming to balance between finances and academic duties. Fortunately, in today’s digital age, there is an excellent array of […]
Light Emitting Diode LED – Symbol, Construction, Working, Types and Applications
The Light Emitting Diode (LED) is one of the most widely used electronic components today, found in everything from indicator lights to full-scale lighting systems. It is a type of diode that converts electrical energy into light energy, offering a highly efficient alternative to traditional bulbs. Unlike incandescent lamps that rely on heating a filament, […]
Electromechanical Relay – Symbol, Construction, Working, Types and Applications
Electromechanical relay (EMR) is one of the oldest and still most widely used switching devices in electronics and electrical engineering. A relay is an electromechanical switching component that uses an electromagnet to mechanically operate a set of contacts. In simple words, a relay uses a small control signal (low power side) to switch large loads […]
Solid State Relay SSR – Symbol, Circuit, Construction, Working, Types and Applications
A Solid-State Relay (SSR) is an electronic switching device that performs the same function as an electromechanical relay (EMR) but without any moving parts. Instead of mechanical contacts, it uses semiconductor devices such as thyristors, Triacs, MOSFETs, or transistors to switch electrical loads ON or OFF. Because there are no moving parts, SSRs offer longer […]
Types of PCB Materials Their Properties and Applications
This article explores various types of PCB materials, their composition, electrical and mechanical properties, advantages, disadvantages, and applications in different industries. Printed Circuit Boards (PCBs) form the backbone of almost every modern electronic device — from small gadgets to industrial machines and communication systems. The performance, durability, and reliability of a PCB depend largely on […]
Different Types of Inductors Their Properties and Applications
Let’s explore the various types of inductors, along with their unique properties and applications. An inductor is one of the fundamental passive components used in electrical and electronic circuits, along with resistors and capacitors. Inductors store energy in the form of a magnetic field when an electric current flows through them. The property of an […]





