Aħbarijiet tal-Industrija

Għaliex il-poli N u S ma jistgħux jiġu separati?

2018-06-21
Anki jekk il-kalamita taċ-ċereali tinfetaħ, il-arblu N u l-arblu S ma jkunux separati, iżda l-qawwa titnaqqas, u l-poli N u S jkunu dejjem imqabbda. Mur u ssib sigrieti moħbija fil-poli N u S flimkien!
Arbli N u S
Il-kalamiti se jattiraw lil xulxin u huma wkoll jirripellaw lil xulxin. Dan huwa għaliex hemm attraenti "forces gravitazzjonali" bejn il-poli manjetiċi ta 'ismijiet differenti, u forzi repulsivi repulsive reċiprokament & quot; jeżistu bejn il-poli manjetiċi ta 'l-istess isem.
   Prepare a bar magnet. Use red to indicate the N pole. Use blue to indicate the S pole. If you divide the bar magnet into two pieces, one can easily think that the Arbli N u S will be separated, but this is not the case. Because every atom that forms a magnet has Arbli N u S. The Arbli N u S already exist in the magnet atom, so even if the magnet is divided even further, the two poles of the magnet will not separate. For a long time, scientists have been looking for magnets that have only one pole, namely "magnetic unipolar". However, so far, people have not found a magnet with only one pole.
Kalamiti permanenti u elettromanjeti
    A permanent magnet is an object that can maintain its own magnetic properties without applying an external magnetic field. Electromagnets, on the other hand, are electromagnets that have magnetism when current passes through them. If the current is cut off, the magnetism disappears. The wire is wound into a coil. Like a magnet, it has Arbli N u S. This is a simple electromagnet. Electromagnets, like permanent magnets, have two poles that attract iron, but unlike permanent magnets, the poles and magnetic sizes of electromagnets can change. Electromagnets are used in electromagnetic cranes that lift more than one ton of weight.
Solenojdi u kalamiti superkonduttivi
Is-solenojd huwa t-tip l-aktar sempliċi ta 'elettromanjet. Hija magħmula minn wajers ta 'l-istralċ densament madwar ċentru ċilindriku. Jekk kurrent jgħaddi mis-solenojd, jiġi ġġenerat kamp manjetiku. Jekk qal qalba ġewwa, tista 'tinkiseb kamp manjetiku iktar b'saħħtu. Il-manifattura tas-solenojdi hija sempliċi ħafna u rħisa u tista 'tiġi applikata f'ħafna oqsma. Madankollu, l-elettromanjeti għandhom ukoll żvantaġġi. Anke jekk il-kurrent jiżdied b'mod kostanti, il-kamp manjetiku riżultanti huwa limitat. Madanakollu, il-kalamiti superkonduttivi jagħmlu tajjeb għal dan l-iżvantaġġ għax anke jekk il-kurrent jgħaddi, ma jiġi ġġenerat l-ebda sħana, u jekk kurrent aktar qawwi jiġi pprovdut kontinwament, tista 'tinkiseb kamp manjetiku aktar b'saħħtu.