Multiple Choice Questions (MCQs) on Synchronous Motors
1. A synchronous motor can operate at (A) Lagging power factor only (B) Leading power factor only (C) Unity power … Continue Reading
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 … Continue Reading
Core Type and Shell Type Transformers
Depending on the type of construction used, the transformers are classified into two categories. Core type Transformer Shell type Transformer Difference … Continue Reading
Low Voltage Switchgear
As per IEC 60947, switchgears with rated voltages up to 1000 V ac and 1500 V dc are termed as … Continue Reading
Arduino DC Digital Voltmeter
A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters … Continue Reading
What is a FUSE and How it Works?
A fuse protects an electrical circuit or device from excessive current when a metal element inside it melts to create an … Continue Reading
Different Types of Rechargeable Batteries
Rechargeable batteries are everywhere these days: cordless tools, laptop computers, cordless phones, and cell phones, just to name a few. … Continue Reading
Three Types of Analog Instruments
An analog instrument is one in which the output or display is a continuous function of time and bears a … Continue Reading
What is Ladder Diagram and How to Draw a Ladder Diagram?
This is a continuation of the previous article (Introduction to PLC Ladder Programming) in PLC Programming series. Please go through … Continue Reading