Resistor color coding

It’s been a while that I looked at a resistor color code so thought I post the color code so that every one can view it. In simpl...

Voltmeter

A voltmeter measures the change in voltage between two points in an electric circuit and therefore must be connected in paral...

Ammeter

An ammeter is an instrument for measuring the electric current in amperes in a branch of an electric circuit. It must be place...

Ohmmeter

The standard way to measure resistance in ohms is to supply a constant voltage to the resistance and measure the current thr...

Galvanometer

Galvanometer is the historical name given to a moving coil electric current detector. When a current is passed through a coi...

current transformer

Central to all of the AC power transducers is the measurement of current. This is accomplished using a current transformer (C...

control transformer

A control transformer is generally used in an electronic circuit that requires constant voltage or constant current with a l...

hight voltage transformer

High voltage transformers convert votages from one level or phase configuration to another, usually from higher to lower. The...

dry type transformers

Dry type transformers require minimum maintenance to provide many years of reliable trouble free service. Unlike liquid fill ...

Step down transformers

Step down transformers are designed to reduce electrical voltage. Their primary voltage is greater than their secondary voltag...

Transformer Theory

High voltage DC, (Direct Current), transmission lines are the most efficient way to deliver electrical power over long distan...

Power Inverter DC-AC definition

Power inverter is a device that converts electrical power from dc form to ac form using electronic circuits. Its typical appl...

Smoke Detector

How a Smoke Detector Works The inner workings of a smoke detector include three main parts: the sensing chamber, a loud horn ...

uninterruptible power supply (UPS)

uninterruptible power supply (UPS) is an electronic device that continues to supply electric power to the load for a certain period o...

Coal Fire Power Plant

Coal-fired units produce electricity by burning coal in a boiler to heat water to produce steam. The steam, at tremendous pressure...

Geothermal Energy

  The term geothermal comes from the Greek geo, meaning earth, and therine, meaning heat, thus geothermal energy is energy derived ...

Ground Loop Basics

What is ground loop ? A ground loop occurs when there is more than one ground connection path between two pieces of equipment. The d...