Essays on Electricity

Before the industrial revolution, humans relied on natural energy flows and animal and human power for heat, light and work. Draft animals, wind and water were the only sources of mechanical energy. The only form of energy conversion (from chemical energy to heat and light)...

1. Introduction Renewable energy field is the majority of the current age because of its importance in developing the humanity. The demand for energy nowadays is going far greater than the generated energy. There are many renewable and nonrenewable energy sources like the fossil fuels...

One of the best renewable source of energy that being used in the Philippines is the solar energy. It lessens or reduce carbon footprint and the use of fossil fuels, and because of its efficiency it helps the country to save electricity costs. The energy...

In the primitive years of electricity utilization, electricity systems were configured to supply power very close to the point of use. As time progressed, centralized large scale power generation was developed and became dominant, facilitated by technological advancement, the advantage of economies of scale, and...

To understand electricity, we must understand what causes the electricity to flow. Electricity is a form of energy. All matter is made up of atoms and atoms have sub-atomic particles. There are three sub-atomic particles, which are protons, neutrons and electrons. The structure is so...

Abstract: This paper simulates the mathematical model of the PV (photovoltaic) module based on the MATLAB script file with all the parameters are involved. Modeling this device environmental factors such as irradiation and temperature needs as input variables. The output of the PV module varies...

The history of power generation is long and convoluted, marked by myriad technological milestones, conceptual and technical, from hundreds of contributors. This report will look at all the power generation sources conventional and non – conventional from a historic, economic, technological and safety perspective and...

ABSTRACT Forecasting electricity demand is very important for all producers and distributors. Liberalization trends affect electricity markets as well and reforms encourage new firms to enter the markets. This causes to rapid technological improvement and increase renewable types energy resources usage to produce electricity ....

Electrical energy is a traded commodity that is critical component of the daily life of consumers. There is an increasing demand for continuous access to power as consumers are increasingly critical of disturbance free power supply. Electrical disturbances occur at everything from planned to unplanned...

Introduction Electric energy is moved from generating site ( source where it is converted from other form of energy) to load (where it will be used ) through high voltage transmission lines. High voltage is used to reduce energy loss, however it produces strong electric...

Magnetism produces lines of force known as flux. These can be detected by compass needle which shows the direction you are travelling as the earth’s magnetic north pole attracts the north ends of other magnets. The magnetic lines of force start from the north pole...

This Major Corporation based out of America has dedicated its time and money towards Corporate Social Responsibility (CSR), and has satisfied interests of stakeholders unlike a myriad of companies like Enron and Volkswagen etc. CSR is a main part of General Electric’s sustainability strategy. General...

Light and materials are inseparably connected; indeed they actually determine each other: neither is visible to the human eye until the two come together. Light and materials are mutually dependent on each other. Materials are key to understanding light in architecture because they directly affect...

Our current societies are run by, and depend on, electricity. From powering televisions to cellphones, electricity maintains many of elements of our modern culture. While some of these electric devices are powered using batteries or solar cells, nearly all important elements of daily life, both...

I’ve been really interested in renewable and sustainable energy sources for a while. While there are many sustainable, renewable energy sources that can be used on a large scale and sold to consumers, I will discuss smaller scale systems that can be implemented within an...

Introduction Electricity is a backbone of our existence in today’s world. It’s quite hard to imagine a world without electricity in the modern times. We are dependent on it for a major part of our day to day activities. However, electricity does not exist in...

At this moment in time, with electricity demand around the world continuing to increase, one way we might reduce our reliance on non-renewable energies is to start using renewables, such as wind energy. Wind energy is set to have an increasingly significant part in the...

Magnetism is a very interesting topic to talk about because of magnets. Some of these magnets lose their magnetism over time. This is an essential fact to consumers because it is better to buy a real-magnet rather than a man-made magnet due to the loss...

The input port can be idealized as either being a voltage input, which takes no current, with the output proportional to the voltage across the port; or a current input, with no voltage across it, in which the output is proportional to the current through...

Semiconductors play a dynamic character in nearly every arena of modern integrated circuit technology, and they enable the manufacturing of everything from receivers to computers and microprocessors. The most significant applications for semiconductor materials comprises their use in the creation of transistors, which are solid-state...

A scientist can truly be viewed as revolutionary when their di Robert Andrews Millikan was born on the 22nd of March in 1868 as the second son of Reverend Silas Franklin Millikan (Father) and Mary Jane Andrews Millikan (Mother) in the town of Morrison, Illinois....

Abstract— A miniaturized Gigahertz Transverse Electromagnetic (GTEM) Cell is designed and fabricated to generate uniform electric (E-) field, essential for studying the RF exposure effect on tissue equivalent liquids at Global System for Mobile (GSM) Communication frequencies (914MHz and 2.10GHz). The simulation procedure is discussed...

The second installment of Sydney’s electro bash festival descended again in the lush surrounds of Sydney’s Centennial Parklands, an idyllic location and arguably one of the best inner-city festival sites in New South Wales, featuring formal gardens, ponds, grand avenues, statues, heritage buildings, sporting fields...

Tunable RF filters are commonly used in various lab environments for testing many frequency bands that include WiFi, UHF, PMR, Tetra, PCS and LTE. Tunable notch filters or band-rejection filters are an excellent solution for band selection or frequency discrimination with high attenuation greater than...

We now will study the various types of disturbances occurring in power system with their magnitude and duration: Complete interruptions: This is our country biggest problem when we study about power quality, the reasons are many. In the European standard EN 50160 two terms are...

Theory: For signal phase half wave converter, average output voltage of converter can be calculated as V0 = (v2v/p)*(1+cos??a)? For 0<a<p The speed of dc motors changes with the load torque. To maintain a constant speed, the armature (and or field) voltage should be varied...

A voltge controlled crystal oscillator (VCXO) is an electronic oscillator whose frequency of oscillation is controlled by the externally applied input voltage. The applied voltage determines the instantaneous frequency of oscillation. The basic circuit of VCXO comprises of a standard crystal oscillator along with an...

Dear Editor Hope you are fine and in full of your health and spirit. I am Harris and I have got an opportunity to write letter to you. This letter is about the frequent loadshedding in my area. There are many problems faced by the...

Let’s face it. No one really tends to think about buying a generator until you lose power from a power outage, major storm, or hurricane. According to the New England Journal of Medicine, the frequency of natural disasters has steadily increased since the 1970s, information...

Introduction In these fast moving world renewable energy sources and storages plays crucial role to meet future end users requirement, in order to reach Australia’s commitment to reducing levels of greenhouse gas generation. However, there is uncertainty around these developments. To reach future generation requirements...