Question

Please help me understand the science behind the "world's simplest electric train".

1) Draw a diagram illustrating the key settings,including battery,magnet and tunnel

2) Explain what drives the train to move, explain the role of the battery , magnet and tunnel wires

3) what is the main physics behind it? What kinds of principles underlying the movement of the train? please connect explanations to diagram to help understand.

SUPER GALKALINE 9704 LATIV

Answer 1

are on of badtery connected to magnet through The key for the simplest electric frain is that the magnets are neodymium. There magnets are permanent magaer which is made from an alloy of neodymium, ison and boson allo cas jy to conduct electricity. To magnetise them. Place this magree either end of baffery. Both north poles or are facing the uninsulated copper coire, a local corect is made. along the length of badteng. This concuit made inserting positiva tominal the copper coise of solenoid and negalia Terminal on the outer sido.. each south poles o there and keeping

coil < The solenoid., a between the coile. across having greator pay when the positive terminced of battery, connected with magnet is placed insicle closch circuit is formed through coil magnetic field magnets. As current flows field is developed The magnetic field at center of solenoich is strength. This field within the coil. inderact magnetic fielch created by the magnet adtached to bathry. makes a repel force in which is inserlech into the solenoid and attract the magnet on the of her. end making in keeps moving it creates coidh one This end move. and Oud the battery to of cool. As the facin new localized, Cincerit that perpetuates the motion. a

(3) basic princople behind its coording coil The is according to electromagnetics and magnetism. Consider a solenoid made of copper having M number of tums with lengthe. when it is connected to external worlage Current, I is produced along the coin. we know a uniforms magnetic field. created through the center of coil whin turrent flows. The stringth of magnetic field is B: MNI ma e. to According righ handh thumb rule. the thumb of night hand indicates the direction of current along the solenoid coise. while the call of fingers In coards gives of magnefic field. As the distance from current carrying wire incocases magnetic field strength cleaneases the direction

principle of magne. ne-fisam north pole. aftrace and same each other. The coe know the A magnet always has a and south pole. Opposite poles of magacts always poles coull repel magnetic frecce created inside the current carrying cohen come in coith the magnets develops force upon The magned to the batting to move coire Contact make а.