In an electrical circuit, a switch is used to turn the electricity on and off just like a valve is used to turn the water on and off. There are times when you want some water but don’t need all the water that the pipe can deliver, so you control water flow by adjusting the […]

          The LCD screen is an electronic display module, it can be used in a wide range of applications. The basic module of the LCD is a 16×2 LCD display and is very frequently used in various electronic circuits and well devices. Construction and Working Principle of LCD Display What is […]

STEPPER MOTOR Introduction to Stepper Motors           Like all motors, the stepper motors also have a stator and a rotor, but unlike a normal DC motor, the stator consists of individual sets of coils. The number of coils will differ based on the type of stepper motor, but for now, just […]

What is a Servo Motor?           A servo motor is an electrical device that can push or rotate an object with great precision. If you want to rotate an object at some specific angles or distance, then you use a servo motor. It is just made up of a simple motor […]

          An Ultrasonic sensor is a device that can measure the distance to an object by using sound waves. It measures distance by sending out a sound wave at a specific frequency and listening for that sound wave to bounce back. By recording the elapsed time between the sound wave being […]

Symbol:(q) Unit:    Coulomb (C) The fundamental electric quantity is charge. Atoms are composed of charge carrying particles: electrons and protons, and neutral particles, neutrons. The smallest amount of charge that exists is carried by an electron and a proton. Charge in an electron: qe = -1.602×10-19 C Charge in a proton: p = 1.602×10-19 C

Symbol: I Unit:   Ampere Current moves through a circuit element “through a variable.” Current is the rate of flow of negatively-charged particles, called electrons, through a predetermined cross-sectional area in a conductor. Like water flow. Essentially, the flow of electrons in an electric circuit leads to the establishment of current. I(t) =    dq/dt q: relatively […]

•           Symbol: V •           Unit: Volt Ø    Potential difference across two terminals in a circuit “across variable.” Ø    In order to move the charge from point A to point B, work needs to be done. Ø    Like potential energy at a waterfall. Ø    Let A be the    lower   potential/voltage terminal Ø    Let B be the    […]

          DC Motor is a two-wire continuous rotation motor and the two wires are power and ground. When the supply is applied, a DC motor will start rotating until that power is detached. Most of the DC motors run at high revolutions per minute (RPM), examples are; fans being used in […]

The flow of electric current through a conductor experiences a certain amount of resistance The resistance, expressed in ohms (, named after George ohm), kilo-ohms (k, 1000), or mega-ohms (M, 106) is a measure of how much a resistor resists the flow of electricity. The magnitude of resistance is dictated by the electric properties of […]