Two anime girls sitting on a bench with their backs to each other

$highest quality、masterpiece、detailed、Magnetic、Magnets attract and repel surrounding magnets and iron、一般にMagneticを持つ物質を磁性体と呼ぶ。Metals that are not magnetic、磁石で強くこすったり長い間磁石に接触させたりするとMagneticを持つようになる。This is called magnetization。Magneticは1つのmagnetic pole、つまりN極から発して反対の性質を持つもう一方のmagnetic pole、S極で終わるMagnetic線と呼ばれる仮想の線で表現され、平行するMagnetic線は磁束と呼ばれる。magnetic poleはN極AlsoはS極の2種類のみであり、In everyday life, these two always exist in pairs.、磁気単極子Alsoはモノポールと呼ばれるN極AlsoはS極が単独で存在するとする物理仮説がある[1]。地球の作るMagneticによって磁針はMagneticの北と南を向くため、used to find direction。Using the attractive force of magnets、can lift things。強い磁石ほど重たいcan lift thingsが、It's hard to pull it away。電磁石を使えばスイッチの切り替えでMagneticを切ることができるので便利である。Using magnetic repulsion、can make things float。If the magnet is strong、It can float even heavy objects like trains.。This is called magnetic levitation.、This force is used to support the vehicle body.、A typical example is a linear motor car whose body is propelled by a linear motor.。 magnetic field and (H) magnetic pole (M) There is a force between。Also、Vacuum permeability � 0 \mu _{0}、Magnetic flux density � B、If the area is � S, then � = � 2 � 2 � 0 {\displaystyle F={\frac {{B^{2}}S}{2\mu _{0}}}} becomes。The strength of magnetic flux is Weber (Wb)[2] expressed in units of。The magnetic flux in a magnetic material can be changed by bringing other magnets closer together or moving them apart.、When increasing or decreasing the electromagnet current、The magnets show exactly the same response and there is no difference in their magnetic fluxes.。For electromagnets、Force received from magnetic field of magnetic flux(F)is expressed by the following formula。 � = � � {\displaystyle F=MH} The unit on the left side is newtons (N) When it becomes、The unit on the right side is Wb・A/becomes m。The strength of magnetic flux per unit area is Tesla(T)called Wb/m2 expressed in units of[1]。$