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admin 15.06.2014

Here is an interesting project for kids that explores both electricity and magnetism – build a simple electromagnetic train! Safety Note:  Neodymium magnets are extremely strong and definitely not for kids who put things in their mouths. Electricity and magnetism are linked in a way that scientists do not completely understand.
In this project, the neodymium magnets on the ends of the battery create a bar magnet with a north pole and a south pole.
You can find a much more in-depth explanation of the science behind this project at Skulls in the Stars. Make sure that the magnets have their poles facing so that north is pointing one direction and south is pointing the other direction.
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In this YouTube video, a dry cell battery, a wound copper wire and a few magnets (see image below) are being used to create what can be described as "train".
If I had asked it, I would have required someone to do it themselves to verify that it worked. The trick in the video is that the magnets are made of a conducting material and they connect the battery terminals to the copper wire, so the battery, magnets and copper wire make a circuit that generates a magnet field just in the vicinity of the battery. The magnets have been carefully aligned so the force on both magnets points in the same direction, and the result is that the magnets and battery move.
If you flipped round the two magnets at the ends of the battery the battery and magnets would move in the reverse direction.
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site. Not the answer you're looking for?Browse other questions tagged electromagnetism classical-electrodynamics or ask your own question.
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Now a days rail transport become a cheap means of transport to any class of people and for the working of the trains it requires some energy in the form of Electrical finally to convert in to mechanical support for the propulsion.
Here the solar energy is converted in to the electrical energy by using solar panels and then used for the needs. With such an aspiration of the mankind’s for high speed transportation, Maglev technology was born at the right moment. In olden days while the man was in search of the fast transmission of information railways make a way to them.
The rails and perpendicular beams are placed on a foundation made of concrete or compressed earth and gravel in a bed of ballast. Levitation is the process by which an object is suspended by a physical force against gravity, in a stable position without solid physical contact. Controllable electromagnetic field is generated by exciting on-board levitation magnets and the magnets and stator packs of long stator linear motor along the guideway attract each other thus pulling the train upward and a stable levitation gap being guaranteed by controlling the levitation excitation current. Electromagnetic using electricity to create a magnetic field and Propulsion- the process of propelling something. The superstructure of the guideway comprises precisely welded steel or reinforced concrete guide way beams for connecting long stators and substructure constituted by the reinforced concrete piers and foundations. Vehicle is the most important part of high speed maglev system comprising levitation chassis and the magnets mounted on the chassis, secondary suspension system and vehicle section.
Power supply includes: substations, track side feeder cables switch stations and other power supply equipment. After step-up, the current will be fed to long stator winding on the guideway via guideway cables and switch stations, generating propulsion force between the stator and on-board magnets.


No strict requirements for the volume, weight and anti-vibration of the equipment are available. Operation control system consists of: operational control center, communication system, decentralized controlled system and on-board control system. For electromagnetic suspension (EMS), electromagnets in the train attract it to a magnetically conductive (usually steel) track. Electrodynamic suspension (EDS) uses electromagnets on both track and train to push the train away from the rail.
In current electromagnetic suspension (EMS) systems, the train levitates above a steel rail while electromagnets, attached to the train, are oriented toward the rail from below.
This eliminates the need for a separate low-speed suspension system, and can simplify the track layout as a result.
In electrodynamic suspension (EDS), both the rail and the train exert a magnetic field, and the train is levitated by the repulsive force between these magnetic fields. A major advantage of the repulsive Maglev systems is that they are naturally stable – minor narrowing in distance between the track and the magnets creates strong forces to repel the magnets back to their original position, while a slight increase in distance greatly reduces the force and again returns the vehicle to the right separation. If superconducting magnets are used on a train above a track made out of a permanent magnet, then the train would be locked in to its lateral position on the track.
Energy for maglev trains is used to accelerate the train, and may be regained when the train slows down .It is also used to make the train levitate and to stabilise the movement of the train. Also some energy is used for air conditioning, heating, lighting and other miscellaneous systems. The Solar power pulley system Maglev train is a small scale replica of two ingenious inventions: combined-solar panels and the maglev train with a few modifications. In the Maglev trains, while there was movement, the track is covered with a closed roof such that the roof of top part covered with solar plates where they absorb the sunlight and acts as source to the track such that they were in the superconducting state to levitate the train when there is the movement.
While in the other method of using the solar energy is to use the solar panels on upper part of the train such that the energy is conserved and used irrespective of the motion of the train. In real life if these two inventions to be combined then it would be one of the best inventions ever.
Maglev rails are those in which the rail acts as the solar panels and they conserve the energy as well as they act as the track for the maglev train. Someone said: “Maglev train is the most fundamental breakthrough in the railway technology since the advent of Stephenson’s “Rocket” steam locomotive about 200 years”.
The use of the solar energy made us to not to find for the alternative source for the electric supply to the track and to the train and even it may not provide total requirement of power to the train it decreases the respective input that to be supplied to the train and track.
I think your idea is innovative and cost effective for a monetary conserving society, but the idea for the future would be to save room on the planet’s surface while reducing noise pollution for the public. I think the idea of using solar panels on the trains roof is quit innovative and can be implemented on conventional indian trains, it would be beneficial to indian railways. All your articles including this one is spread all across the internet… LinkedIn, Facebook, Twitter as well as in daily newsletter to 5K+ subscribers.
Electrical Corner StoreCheck out our new #Electrical Corner Store with selected Electrician's Books, Testing and Safety equipment and other electrician's stuff! Science at GlanceOur mission is to be the leading provider of scientific information in the field of power and engineering in general. We’ve been watching the video a lot and it helps to have the insight of someone who has tried it. However at the ends of the coil, where the field lines diverge, a bar magnet will be either pulled into the coil or pushed out of the coil depending on which way round you insert it.
The geometry means the two magnets are automatically at the ends of the generated magnetic field, where the field is divergent, so a force is exerted on the magnets. This would be a more direct way to calculate the force than to try to calculate the force from the two magnetic fields in my opinion.


For that among the various forms of energy solar energy is the best form to use in the present situation. Revolutionary changes have taken place in the life of the mankind since human beings acquired the capability of walking upright. One of the characteristics of the society created by modern science and technology is the large volume of information and the wide high speed transmission of information.
Rail transport is where a train runs along a set of two parallel steel rails, known as a railway or railroad.
All operational implementations of maglev technology have had minimal overlap with wheeled train technology and have not been compatible with conventional rail tracks. Levitation gap between magnets and guideway is normally controlled to the range between 8 and 12 mm. Besides it includes such electrical appliances as on-board batteries, emergency breaking system and levitation control system. The rectification equipment and motor stators etc… of the Maglev system are all installed on the ground. It includes all the equipments to be used in security guarantee control, execution and plan and also includes the equipment to be used in communication among the equipment. The system is typically arranged on a series of C-shaped arms, with the upper portion of the arm attached to the vehicle, and the lower inside edge containing the magnets. On the downside, the dynamic instability of the system demands high tolerances of the track, which can offset, or eliminate this advantage. The magnetic field in the train is produced by either electromagnets or by an array of permanent magnets. Over long distances where the cost of propulsion coils could be prohibitive, a propeller or jet engine could be used. It would be environmentally friendly as zero green house gases would be produced which is important since climate change is a big issue these days.
Maglev train should be regarded not merely as a fundamental breakthrough, but much more as an example of modern transport means.
Every day, the generation and usage of energy produces more pollution than any other single industry. Many don’t think of it as a career option, but introducing your little ones to it early might be a great path for them. The rails are anchored perpendicular to ties (or sleepers) of timber, concrete or steel, to maintain a consistent distance apart, or gauge. The repulsive force in the track is created by an induced magnetic field in wires or other conducting strips in the track. The addition of a canopy would really add to the cost as well as create even more oppressive structure above the streets.
Propulsion is commonly provided by a locomotive that hauls a series of unpowered cars that can carry passengers or freight. If the vehicle basically floats above the surface, couldn’t that same surface be solar panels?
The locomotive can be powered by steam, diesel or by electricity supplied by trackside systems.



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