Product name：KX1325电磁小火车
货号：KX1325电磁小火车
尺寸："Direct18m long900-1100mm
Weight：about170g
Material：Alloy coil+7"Alkaline battery"+强磁Magnet
颜色：铜色
包装：彩盒
是否使用电池:是
装箱： 150pcs
Box gauge：650*550*450mm
We are a direct factory and can produce and customize according to your requirements，For custom screenshot matters, please contact customer service！
Revelation：
Trains rely on locomotives equipped with power machinery(Commonly known as a locomotive)牵引one节节车厢，Travelling on the railway。Trains are an important part of modern transportation，Apart from transporting passengers，Trains are still the main means of transportation for long-distance goods transportation，It has a large load capacity、Advantages such as low transportation costs。In addition，In large coal mines、In the factory，It also uses trains to complete internal transportation tasks。The train is already available.100多years的历史了。The earliest train to appear was at1814It was made by the Briton Stephenson in that year。to1825years，Made by him“"Power"”1The No. 1 locomotive set the highest speed for land travel at that time，Every hour24"Kilometer"。在这之后的几十years中，Trains have gradually become an important means of transportation，European countries and the United States began large-scale railway construction，From then on, mankind entered the railway age。火车和铁路的出现使人们可以更快地进行long途旅行，可以更轻易地从很远的地方得to所需的物资并把产品运送to远方去销售，All these have greatly promoted the development of production，It has improved people's living standards。 知道了火车的起源接下来我们one起动手"Production"one个磁力小火车吧。
Principle：
When a coil is energized, it generates a magnetic field，Like repels each other.。 When the battery with a magnet attached enters the copper coil，In the magnetic field formed by the copper coil，The attraction to the electromagnet、Repel each other，This has led to the movement of the battery。is、Negative current moves along the copper wire，It pulls each other with the magnets on the battery、Rejection，It became that invisible hand，Push the battery to run smoothly forward。
"Production"：
1，Recognize and prepare the equipment needed for the experiment。
2，Conduct the experiment in accordance with the steps in the manual。
Expansion：
小火车从静止to运动,肯定是受to了力的作用。The forces that a small train may generate during its movement include friction、Ampere force、Air resistance。Friction and air resistance impede motion,能够使电池运动起来的很有可能是Ampere force。Basic common sense is: one、Magnet能够吸附在电池上,It is because there is an iron core inside the battery,电池的性质不会因为附着Magnet而改变 two、Magnet具备导电的性质,Copper wire in the experiment、Magnet、Batteries may form circuits。 接下来的问题就是Ampere force是如何产生的,And how does it work on the small train。The condition for generating an ampere force is that a current-carrying wire is in a magnetic field,And the direction of the current is not parallel to the direction of the magnetic field intensity。附着在电池两的Magnet提供了磁场,So how is electric current generated。 The little train is in operation,Magnetone直与铜导线保持接触,In addition, the battery provides voltage,就形成了one个持续的移动回路。At this moment,The direction of the current on the copper wire is not parallel to that of the magnetic field,的确可能产生Ampere force,但是这oneAmpere force作用在铜线上,It cannot cause the small train to move。Therefore,换one个思路。 When current passes through a copper coil, a magnetic field is generated,Magnet上垂直前进方向的表面存在等效环形电流,At this moment,Ampere force即产生,这onePrinciple可以通过实验现象证明。In the experiment,只有当两Magnet相同oneRelative附着在电池两端时,Only the little train can move,The specific force is shown in the figure.: 图中反映了当两MagnetNRelative,The situation when a solenoid generates a horizontal magnetic field to the right。左侧Magnet的等效环形电流如图,Due to the fact that the magnetic field intensity on both sides of the electrified helical coil diverges outward,Not parallel,Therefore,According to the left-hand rule,取one小段等效电流如图,受Ampere force在水平方向有向左分。"Similarly",右侧Magnet的等效电流受Ampere force同样产生向左的水平分量,Therefore,The little train moves under the force to the left。 当两MagnetSRelative,Other conditions remain unchanged,That is, the current direction of the solenoid remains unchanged。Then both sides generate ampere forces and there is a horizontal component force to the right,Magnet向右运动。
