Essays On Electricity

Class A amplifiers are commonly used for small-signal amplification as they amplify the input signal throughout the entire cycle without any clipping, resulting in an output signal that is a scaled-up replica of the input. Class A circuits are not very efficient. Theoretical maximum efficiency is 50%, but for small signals, this power waste is […]

Introduction of corporation profile Tenaga Nasional Berhad financial analysis 1998-2007 Profitability ratios and sales revenue Leverage management Earnings per share Liquidity ratios Fixed asset turnover Introduction Tenaga Nasional Berhad (TNB) is the largest utility company in Malaysia. It is also the largest power company in Southest Asia with RM65 billion worth of assets serving over six […]

Physics Practical Report Experiment Ohmic Resistance and Ohm’s Law Aim To find out how current, voltage and resistance in a circuit are related, also to discover the relationship known as ‘Ohm’s Law’. Hypothesis In this experiment, conductors are used. Conductors which obey Ohm’s Law are called Ohmic conductors. Thus, for an ohmic conductor, a graph […]

Small curls of a shiny, metallic looking substance float down onto a mountain of shreds. These shreds belong to cars– the Honda EVs (electric vehicles), to be exact. In the thought-provoking documentary, Who Killed the Electric Car? , director Chris Paine looks into the birth, rise, and fall of the electric car. This 2006 documentary […]

Introduction In an effort to achieve organizational goals, a large part of General Electric’s overall strategy involves rigorous management oversight and dedication to controllership. Controls are processes that “direct the achievement of individuals toward the achievement of organizational goals” (Bateman & Snell, 2007).Four control mechanisms used by GE are Six Sigma, performance measurement, internal and […]

INTRODUCTION Shortly after the creation of the generator, commonly referred to as the ‘dynamo’, the benefits of supplying electrical energy to multiple users from a shared power generation system were recognized. In 1882, the first public power station began operating in London (Holborn), and other countries quickly followed suit by establishing their own electricity supply […]

In an effort to provide a comprehensive resource for ACE owners, this guide aims to gather useful information and present it in a single source. While not an electrician or professional motorcycle mechanic, the author does have a basic understanding of electrical and electronic systems from a career as an aircraft mechanic. Combining this knowledge […]

We wish to express our profound thanks to all those who helped in making this report a reality. Much need moral support and encouragement is provided on numerous occasions by our whole friends, UPCL members and seniors We would also like to take the opportunity to acknowledge the contribution of all faculty members of the […]

Nowadays, people value time greatly and want to avoid long waiting times. To cater to this need, we introduce a meter recharging scheme similar to how we recharge our cellphones. With this system, electricity consumers need to buy electricity before using it, receiving a “token” in exchange. This token can then be used to add […]

When selecting an LED manufacturer, it is important to consider their reputation for ensuring product quality; however, manufacturers with strong reputations often charge higher prices due to their brand. For ordinary consumers, the preferable option is to choose a manufacturer with relatively low prices but a guarantee of quality. To determine if a manufacturer is […]

Electric cars are cars that are propelled by one electric motor or more. The motor is powered by electrical energy stored in batteries or another energy storage device. These cars were popular in the late 19th century and early 20th century until the advance in internal combustion and mass production of cheaper gasoline. Electric cars […]

The construction of a potentiometer involves several components, including a resistive element, a sliding contact or wiper, electrical terminals at both ends of the element, a mechanism for moving the wiper, and a housing that holds the element and wiper. Inexpensive potentiometers often have an arc-shaped resistive element. The wiper rotates along this arc to […]

Objective:Plot the equipotential lines patterns of electric fields set up by electrodes of different shapes.Apparatus:Result:The experimental results were get by setting up the apparatus as shown below first. – A paper was placed under the conducting plate.- Three electrodes were dipped into the conducting plate- One of the electrodes and a flying probe were connected […]

Solar Cells utilize available light and convert it into electrical energy by relying on the photoelectric effect discovered by Alexander Becquerel in 1839. This process doesn’t require chemical reactions, and simply requires a solid state surface to release positive and negative charge carriers upon being exposed to light. Becquerel observed this characteristic while conducting experiments […]

The choice of insulation material is determined by the particular application. When it comes to high-frequency applications, people often use polyethylene and polystyrene. However, for insulators, the maximum temperature expected should be considered. For instance, Teflon is utilized within a temperature range of 175°C to 230°C. In more difficult chemical or mechanical environments, other materials […]

In my experiment, I opted to examine and assess a linear position sensor and its potential practical application. The setup, as depicted in the accompanying diagram, involved a selection of equipment, namely: a sensor, a retort stand featuring two clamps, 100g, 20g, and 10g weights with holder, and a piece of string. Concerning safety measures, […]

Indeed GE’s success can be attributed to the 20-year leadership of CEO Jack Welch from 1981 to 2000. What is most striking here, that visibly shows how Welch’s leadership mattered to GE, was that two years after he retired, GE’s market value had fallen by 45 percent and the S & P index decreased by […]

The wireless communication industry has undergone a revolution, shifting from long and strong wavelengths to wider and weaker bands of shorter wavelengths. Mobile phone services have transitioned from using low FM frequencies in the 1950s, to spectrum bands of 450 megahertz in the 1960s, to the current cellular band of 900 megahertz, which serves around […]

At the onset of information technology in the late 19th century, calculator machines were its primary focus. Initially, its purpose did not revolve around communication. Originally, the purpose of creating a computational machine was simply to aid in the calculation of large numerical values. Despite its limited functionality during its inception, a replica of the […]

A lightning arrester Is a device used on electrical power systems and telecommunications systems to protect the Insulation and conductors of the system from the damaging effects of lightning. The typical lightning arrester has a high-voltage terminal and a ground terminal. When a lightning surge (or switching surge, which is very similar) travels along the […]

These sensors usually employ an audible alarm to alert people when a dangerous gas has been detected. Common sensors used today include Infrared Point Sensor, ultrasonic gas detectors, electrochemical gas detectors, and Semiconductor Sensors. More recently, Infrared Imaging sensors have come Into use. All of these sensors are used for a wide range of applications, […]

Thomas Alva Edison, a very famous inventor who lived during the 19th and 20th centuries, invented the incandescent light bulb, the phonograph, and over a thousand other devices.  He was always thinking of new ways to do things.  Perhaps his only invention that wasn’t an “improvement” of another device was the phonograph.  Many of his […]