What are the basic principles of electricity?
Some basic principles of electricity:
-Opposite electrical charges always attract each other, and Like electrical charges always repel.
-An INSULATOR is any material that inhibits (stops) the flow of electrons (electricity). Insulator material includes glass, rubber, and plastic.
-A CONDUCTOR is any material that easily allows electrons (electricity) to flow.
Conductor material includes copper, silver and gold.
-Any material with exactly 4 free electrons in the outer orbit are called SEMICONDUCTORS.
A semiconductor is neither a conductor or insulator.
semiconductor material includes carbon, silicon, and germanium.
These materials are be used in the manufacturer of diodes, transistors, and integrated circuit chips.
-Electron Theory states that current flows from NEGATIVE to POSITIVE. Electrons move from atom to atom as they move through the conductor towards positive.
-Conventional theory, also known as HOLE THEORY, states that current flows from POSITIVE to NEGATIVE. Protons or the lack of electrons (the holes) move towards the negative. (Current flow direction in Hole Theory is the opposite of that in Electron Theory.)
-Voltage is the electrical force that moves electrons through a conductor. Voltage is electrical pressure also known as EMF (Electro Motive Force) that pushes electrons. The greater the difference in electrical potential push (difference between positive and negative), the greater the voltage force potential.
-A Voltmeter measures the amount of electrical pressure difference between two points being measured. Voltage can exist between two points without electron flow.
-Voltage is measured in units called VOLTS.
-CURRENT is the quantity or flow rate of electrons moving past a point. Current flow is also known as amperage, or amps for short.
-An AMMETER measures the quantity of current flow. Ammeters are placed in series (inline) to count the electrons passing through it.
-Current flow is measured in units called Amperes or AMPS.
-Two common effects of current flow are Heat Generation and Electromagnetism.
HEAT: When current flows, heat is generated. The higher the current flow the greater the heat generated. An example would be a light bulb. If enough current flows across the filament, it will glow white hot and illuminate to produce light.
ELECTROMAGNETISM: When current flows, a small magnetic field is created. The higher the current flow, the stronger the magnetic field. An example: Electromagnetism principles are used in alternators, ignition systems, and other electronic devices.
-Resistance is the force that reduces or stops the flow of electrons. It opposes voltage. Higher resistance will decrease the flow of electrons and lower resistance will allow more electrons to flow.
-Resistance is measured in units called OHMS.
-Two basic types of Electricity classifications:
STATIC ELECTRICITY is electricity that is standing still. Voltage potential with NO electron flow.
DYNAMIC ELECTRICITY is electricity that is in motion. Voltage potential WITH electron flow. Two types of Dynamic electricity exist:
Direct Current (DC) Electron Flow is in only one direction.
Alternating Current (AC) Electron flow alternates and flows in both directions (back and forth).
-Electricity can be created by several means: Friction, Heat, Light, Pressure, Chemical Action, or Magnetic Action.
In an automobile the battery produces electricity through chemical action, and the alternator produces electricity through magnetic action.
Friction creates static electricity.
Heat can act upon a device called a thermocouple to create DC.
Light applied to photoelectric materials will produce DC electricity.
Pressure applied to a piezoelectric material will produce DC electricity.
Chemical Action of certain chemicals will create electricity.
the principles of electricity gradually became understood. Thomas Edison helped change everyone's life -- he perfected his invention -- the electric light bulb. Prior to 1879, direct current (DC) electricity had been used in arc lights for outdoor lighting. In the late-1800s, Nikola Tesla pioneered the generation, transmission, and use of alternating current (AC) electricity, which can be transmitted over much greater distances than direct current. Tesla's inventions used electricity to bring indoor lighting to our homes and to power industrial machines.
Again, Edison primary worked on the principle of trial and error. Nikola Tesla figured out what he wanted to do, thought about and designed what he thought would work. When he built it, it usually worked.
Thomas Edison & Nikola Tesla worked in labs a few miles apart in New York. While Edison was working on his electric lamp, Tesla was working on the AC distribution system we still use today, in his lab lighted by fluorescent lamps he designed and built.
blades,rotor generator,gearbox ,couplingmotor
basically electricity rules the world through electrons...it creates the deficiency of electrons in an object(conductor1) which in turn when touched with the other conductor2 results the flow of free electrons from conductor2 to conductor1..analogous to chemical reaction. the earth surface contains a variety of free electrons moving randomly.. the high voltage line when touches earth, the free electrons start flowing from earth to the high voltage line with a very large number of electrons and… Read More
It turns into chemical energy.
the basic function of electricity is to develop energy.
The way an electric tube, or fluorescent, light works is really very interesting. Most "regular" light bulbs are incandescent. Their source of light is the glow of electricity passing through a very thin wire known as a filament that is suspended in a vacuum. It glows with a "warm" color in the yellow/orange range. With a fluorescent tube there are two filaments, but they do not directly provide the light source, and a mercury vapor… Read More
Candles themselves can generate very little electricity and, like coal, would have to be used to make steam from the heat of bulbs, which then might be used to make electricity. But it would be quite inefficient. The best source of illuminating an electric light bulb is current from a source such as hydroelectric, oil, or coal power. In my opinion, hydroelectric or solar power are the best ways to generate electricity, as they do… Read More
One basic specification that electrical receptacles are based on is the amount of amperage that the receptacle can legally handle. The other basic specification is the amount of voltage that the receptacle can legally handle. This is the reason that there are so many different types to choose from. When buying a receptacle you should be armed with the knowledge of what the voltage is going to be and what the load amperage is going… Read More
Manufacturers were able to build manufacturing plants where they wanted.
Turbines actually make the electricity wind, water, and other recources do the work of turning the generators to produce the electricity.
There are several heater elements in the toaster. An electrical current in the heater element toasts the bread. A thermostatic switch or timing device automatically controls the toasting process.
what is basically electricity
it would be very difficult without electricity because there wouldn't be any air conditioning to keep our homes cool in the summer. ^ r u srs
Watts, kilowatts, megawatts, gigawatts are the units for electricity. The smallest unit is watts, if you consider 1000 W then it is 1 kW. 1000 kW = 1 MW and 1000 MW = 1 GW. Additional Answer'Consumption' is a measure of how much energy you have purchased from your electricity utility. The SI unit of energy is the joule, but this is a very small quantity, so electricity utilities use kilowatt hours (kW.h) instead of… Read More
For Canada: See the related link below. For U.S.: There's no short answer to this. Check out NFPA 70E, which addresses exactly this. See Related Link Below.
Well, the answer is quite simple. By converting to wind energy, we are relying on something that we cannot fully control just yet, and that would be the wind and generally nature a whole. if there's no wind at any given time, then we don't have power. It's not so convenient as what we have now! The idea is great for sailboats and remote places that need very small amounts of power. Large wind farms… Read More
Almost all electrical wiring is made of copper. For larger sizes to keep the cost of the installation down the wire used is aluminum. Sometimes the copper wire is tinned with solder, and sometimes there is some silver in it. ==== For over 100 years utility companies have been using aluminum wire in their power grids. It has advantages over copper wire in that it is lighter, more flexible, and less expensive. Aluminium wire in… Read More
to fight other ones
Semi conducting the amperage to determine the cube root of ohms as a factor of the wattage.
The minimum speed of 6v motor to produce electricity is 15 Mph.
yes it does. the faster the blade turns the more electricity it produces
nec is published every 3 years 2011,2008 and so on
what are the classification of electrical tools ad equipment
That is one simple question that can't have any simple answers! For a start, do you mean "the history of electrical outlet changes" just for one country (such as USA or England, or Australia, or ...) or do you mean worldwide? One way for you to get some answers to this question would be to go to a science museum and ask if there is a section dealing with the history and development of electricity… Read More
On a 240 volt hot water tank there is only one of the two elements on at any one time. The incoming cold water is taken to the bottom of the tank through a pipe inside the tank. When the lower thermostat senses the cold water, the lower element turns on. As you draw hot water from the top of the tank the cooler water from the bottom will rise. When the top thermostat senses… Read More
The national electrical code is a minimum set of standards used to protect persons and property regarding the installation of all electrical equipment. It is a protection for people.
The rising mains are essentially used in electrical distribution system in buildings two storied and above. It is basically used in indoor applications. Nowadays vertical type distribution is normally used as it is more convenient and reliable compared to rising cable system.
I hope you're thinking of AC and DC. Direct current always flows in one direction, alternating current flows back and forth.
The limitations are that they are not waterproof or fireproof.
What is the main reason the electrical output of the taser is safer than a household electrical wall outlet?
It is not necessarily safer, it has a lower current capacity than a wall outlet, but a much higher voltage. Under the right circumstances both have the potential to kill you. As I recall there are about 1,000 electrocution deaths in the USA each year and would assume more of these are from household accidents rather than from a taser. Taser is a registered trademark that stands for Thomas A. Swift's Electric Rifle.
One assumes you are talking about intermittent power in an outlet or a light fixture. In either case it is likely something is loose. If it is a single outlet or switch, turn off the power and tighten any screws or wire nuts inside the box covered by the outlet or switch plate. If it is one light it may be a bad bulb that needs to be replaced. The filament may be vibrating causing… Read More
Wind power. A wind farm. A wind turbine.
There were or are several. George Washington Benjamin Franklin Nicolai Telsa George Westinghouse There are probably countless others also.
In a three wire grounded system it is used to carry the unbalanced load current.
If you have a copper wire coming out it would be a"ground." This wire is there in case there is crossed wires inside the meter. It allows the electricity to seek the shortest route to the ground through the wire instead of through something dangerous or distructive.
Junction Box - an octagonal shaped electrical material where the connections or joints of wires are being done. It is also where the flush type lamp holder is attached. This could be made of metal or plastic (PVC) Polyvinylchloride.<<>>The function of a junction box is to suppress the spread of fire. In an electrical system the most likely spot for a fire to start is where wires are connected together. Loose connection of joined wires… Read More
any wall 2' or over
Electricity consumption or, more accurately, energy consumption is measured in units called joules (J), although electricity supply companies use a bigger, non-SI, unit called the kilowatt hour. A kilowatt hour is defined as 'the energy consumer, over a period of one hour, at the rate of one kilowatt'.
Windmills convert wind energy (which is kinetic energy) into electricity.
TV, lights, appliances, heat, cooking, refrigeration and on and on.
For the advantages, think about what would happen if the electricity was cut off at your home. You could ask your parents to switch it off to help with your homework . . The disadvantage is that it can be dangerous if not properly used.
There are a string of cool gadgets that popped up because of the harnessing of electricity. Too many to list here. A link to a general article will get a reader started with an investigation. i have no idea what im talking about