familiarization of electrical apparatus. Name Image Symbol Uses of functions Galvanometer A galvanometer is a very sensitive meter which is used to measure tiny currents‚ usually 1mA or less. Ammeter An ammeter is used to measure current. Voltmeter A voltmeter is used to measure voltage. Resistor (Fixed and Variable) Fixed Variable A resistor restricts the flow of current‚ for example to limit the current passing through an LED. A resistor is used with a capacitor in
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1. INTRODUCTION Electrical substation for distribution system is the main supply to convert the high voltage (HV) to low voltage (LV) and the place where load are distributed to the consumers. In Malaysia‚ Tenaga Nasional Berhad Distribution (TNBD) used the 33/0.433kV‚ 22/0.433kV‚ 11/0.433kV and 6.6/0.433kV voltage system for the electrical system to supply for domestic consumer and industrial consumer such as factory which will supplied directly from Transmission Main Intakes (PMU)‚ Main Distribution
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Electrical Charges: Electrical charges come as plus or minus. Like charges repel‚ unlike charges attract. Electrons and protons have‚ to fantastic accuracy‚ equal and opposite charges. Quarks have 1/3 the electron charge but are never seen alone! In wires electrons do the moving to carry electrical current. In solutions or plasmas there can be positive charge carriers‚ ions or protons. Although the signal to tell electrons to move in wires travels at about 2/3 the speed of light
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Basic Electronics Chapter 2 Basic Electrical Principles and the Functions of Components Figures in this course book are reproduced with the permission of the American Radio Relay League. This booklet was compiled by John P. Cross AB5OX PHYS 401 Physics of Ham Radio 25 Basic Electrical Principles • Conductors - keep loose grip on their electrons and allow electrons to move freely. Metals are usually good conductors. • Insulators - keep close hold of their electrons and do not
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Today we often take for granted just going to the doctor and getting medicine to fix any illness we may have or pain that we are feeling. There hasn’t always been the privileges that we have today‚ back in the 1800’s and early 1900’s it wasn’t uncommon for people and children to die from just a minor scratch‚ pinpricks‚ scarlet fever‚ or any minor diseases. Hospitals were full of people with infections spiraling out of control‚ but there wasn’t anything available for them. Our soldiers fighting
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ELECTRICAL ENGINEER DESCRIPTION “Electrical engineers design‚ and evaluate the manufacture‚ testing‚ installation‚ operation‚ and maintenance of electrical and electronic components‚ equipment and systems.”1 Electrical engineers work with an array of equipment and machinery‚ such as transformers‚ switches‚ electrical appliances and types of generators‚ and are considered in fields involving communications‚ radar‚ aerospace guidance‚ medical and biomedical research
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Currently electric vehicles are slowing becoming popular with some already on show room floors. Furthermore‚ there are many enthusiasts and groups that have really been pushing their use. Tough these cars do not share the same performance qualities of some gas-powered cars; the current technology has been rapidly catching up. Hybrid vehicles have offered in some ways the best of both worlds. The cars are environmentally friendly yet offer the power and distance capabilities of other cars on the market
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1. It’s easy to get your first job Electrical engineering students fairly easy find their first job because most employers in electrical field search for fresh mind‚ with fresh knowledge and at the same time they get young people they can mold to their own specific needs and make experts out of them. 2. You can work in another country Working as electrical engineer opens you lots of opportunities in other countries. Laws of math‚ electricity and physics are universal and your gained knowledge
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1. Minimize Phantom Loads The term “phantom load” refers to the energy that an appliance or electronic device consumes when it is not actually turned on. According to the U.S. Department of Energy (DOE)‚ “In the average home‚ 75 percent of the electricity used to power home electronics is consumed while the products are turned off.” A report from the University of California Berkeley says that phantom loads account for about 6 percent of all national residential electricity consumption. You can
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Jeffery only reads on about a fourth-grade level. Jeffrey met the eligibility to receive special education services and was classified as having a learning disability. According an article Special Education 101‚ “Half of all special education students are learning disabled. An estimated 80-90 percent have reading problems” (Kafer 2002). The processes and procedures to be followed after the identification of Jeffrey’s disability include developing an Individualized Education Program (IEP)‚ placement
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