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Aim and conclusion about electromagnet
Electric motor
Aim and conclusion about electromagnet
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I have written this science research paper to help people understand more about the electric motors and their operation. The electric motor transforms electrical energy into mechanical energy, which in turn makes motion possible. To better understand electric motors, one should first understand the basics of electric motors operation, electromagnetics.
One can create an electromagnet by running an electric current through a wire which in turn will create a magnetic field. An electromagnet may only be a temporary magnet but it has the same magnetic properties as a permanent magnet. Any magnet creates a magnetic field and this magnetic field will contain two ends or polls, one North and one South. The fundamental law of magnets states that ?Opposites attract and likes repel? and the same holds true with an electromagnet. A simple electromagnet can be created by the use of a power source and a piece of wire as shown in Figure 1. The magnetic field created will be stronger then the magnetic field of the earth, effecting the compass and will cause the needle to move in the direction of this newly created magnetic field.
As current flows through the wire, a magnetic field is created around the wire. Figure 2 shows the circular shape of the magnetic field around the wire as if you were able to look down the end of the wire. The magnetic field itself is invisible, but the magnetic field strength can be measured through the use of special equipment. The magnetic field weakens the further you move away from the wire and will always be perpendicular to the wire and the fields direction depends on the which direction the current if flowing. Since the magnetic field is always circular and perpendicular to the wire, the magnetic field can be increased simply by creating a coil of wire. Figure 3 shows an example of a simple electromagnet by coiling a wire around a nail and connecting it to a power source. The magnetic field is amplified by each loop of wire around the nail.
An electric motor depends upon magnetism to function, to be more specific, electromagnetism. By continuously changing the direction of the electromagnetic field in a motor, we take advantage of the basic magnet principle that ?Opposites attract and likes repel?. This allows an electric motor to rotate.
Electric Cars use the energy stored in a battery (or series of batteries) for vehicle propulsion. Electric motors provide a clean and safe alternative to the internal combustion engine. There are many pros and cons about electric cars. The electric vehicle is known to have faster acceleration. They produce no exhaust.
The force that that turns the armature comes from the magnetic field of the armature trying to line up with the external magnetic field of the stator. This force is called torque. This torque will cause the armature to turn until its magnetic field is aligned with the external field, but no further. How does the armature continue to spin? One of the magnetic fields must be changed so that the armature has to turn again. The armature will spin so long as there is always a torque acting on it. How this is accomplished is what sets each type of electric motor apart.
The annual report of the company shows status of the company’s business. Through the annual report of the company, creditors, investors, and everyone else can see the financial health of the business for the company. Fords and General Motors are two competitors in auto mobile industry area, and these two companies are most famous automobile companies that United States manufacturing businesses. Since these two companies are in same industry area, the investors compare these two companies which company is more worthy to invest their money. Annual report is financial certification that how a company was financially. Liquidity, solvency, and profitability are three way to compare these two companies financially.
Energy efficient motors use more copper and iron than regular motors. They also consume less energy than regular motors.
being picked up by the nail. The strength of an electromagnet can also be altered by varying the current or voltage. The more induced voltage, the stronger the electromagnet. An alternative way to strengthen an electromagnet is to replace the core with a "soft" iron. core. The.. Prediction: -.
Linear generators and motors are classified as linear motion electromagnetic systems (LMESs) [1]. LMESs that are used as electric generators function by directly utilizing the translational (back and forth or up and down) thrust from mechanical systems to generate electricity as opposed to the more conventional generation approach of rotational mechanical energy conversion.
The future American commuter will undoubtedly have to transition from the use of fossil fuels to new alternatives due to the diminishing availability of the nation’s oil resources. How will America respond to this upcoming issue? It is difficult to predict which alternative fuel source America will ultimately choose, but with the premier of Nissan’s electric powered Leaf and other companies; such as Tesla Motors and Chevy, with their electric cars ready for market, the electric car may be winning the race to become the new standard for the gasoline alternative. Electric cars resolve long standing environmental issues, but it will need to maneuver around many roadblocks to become a marketable consideration for the general public. The cost of electric cars, currently on the market, makes them an impractical purchase for the average consumer. If cost is not the growing concern in today’s economy which prevents the consumer from considering this option; they may deny the technological advance due to battery storage capabilities and the inadequate infrastructure in place to refuel and provide for them.
A Tesla Coil has 2 coils. A Tesla Coil has a primary coil. It also has a secondary coil. Evey Tesla Coil has at least 2 coils. The Tesla Coil By Kevin Fry. Each Tesla Coil has 2 coils we just learned that but a coil has a capacitor. If you don’t know what that is it’s just a place from it to store energy. Both the coils has a capacitor. As well for running it it’s different. In order to run a Tesla Coil you need a high power souce. The Tesla Coil takes a 120 vAC to several kilovolt transformer. It has a driver circuit that steps it up to an extremely high voltage. A tesla coil builds up its energy when it gets too full it does this electric discharge. When it does an electrical discharge it disputes electrical acrs. Electrical arcs are basically small lightning bolts that come from the Tesla Coil itself. Furthermore Nikola Tesla experiment with Tesla Coil. Nikola Tesla the man who made the tesla coil also experimented with it. He tried to do radio transmission through an electrical wave. Also he transmitted electrically through the air. And with a high frequency air-core transformer. The Tesla Coil By Kevin Fry. THe Tesla Coil defines most insulation material. It can transmit energy with
To understand how this motor works, we must understand the relationship between electricity, and magnetism, or simply put, electromagnetism. Direct electric current in a simple description: There are two requirements for current flow. The first is a source of electrical potential energy or EMF (electro motive force). The second is a conductor that provides a complete loop to carry the current. The reason a conductor will conduct is found at the atomic level.
The torque developed by the motor is proportional to the product of the armature of the current and air gap flux i.e.
The necessity of motion to produce a current is due to the fact that electromagnetic induction involves a time-varying magnetic field. The same effects can be produced by moving the coil toward and away from a motionless magnetic source. In either case, the key to producing the current is certainly the motion of the magnet or the wire. The magnetic lines of the magnetic field must pass through a loop of the coiled wire.
electricity as the “fuel” instead of gasoline or some other combustible fuel. The electric motor in
Faraday built two devices to produce what he called electromagnetic rotation: that is a continuous circular motion from the circular magnetic force around a wire. Ten years later, in 1831, he began his great series of experiments in which he discovered electromagnetic induction. These experiments form the basis of modern electromagnetic technology.
Magnets are stones that produce magnetic fields. The magnetic field is invisible, but is responsible for the most noticeable aspect of a magnet: the attraction of a metal object or the repulsion of another magnet. Magnets are used in common everyday household items: credit cards, TVs, speakers, motors, and compasses. A magnets strength is measured by its magnetic moment. (“Magnetism”)
...which moves a magnet back and forth through a coil of wire to generate electrical current in the wire. To prevent physical wear the piston does not actually touch the inside of the mechanism. This generator is mostly used in NASA projects.