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一、磁场1.磁场的存在在磁体周围的空间存在着磁场.磁场是看不见、摸不着的,但人们却可以根据它所表现出来的性质来认识它,研究它.如用条形磁体靠近原来静止的小磁针(不与小磁针接触),看到小磁针受力而发生转动,静止后不再指南北.可见,在磁体的周围空间存在着一种能传递磁极间相互作用的物质,这种看不见、摸不着的特殊物质就是磁场. 2.磁场的基本性质磁场对放入其中的磁体产生磁力的作用.如小磁针放在条形磁体周围的磁场中时,有了固定的新指向,这正是磁场的基本性质的表现,
First, the magnetic field 1. Magnetic field exists in the space around the magnet there is a magnetic field. Magnetic field is invisible, intangible, but people can understand it according to the nature of its manifestation, study it. Such as the use of bar magnet near The original stationary small magnetic needle (not in contact with the small magnetic needle), sees the small magnetic needle undergoes a force and rotates, and no longer guides the north after it is stationary. It can be seen that there is a substance that can transfer magnetic pole interactions in the space around the magnet. This special material that cannot be seen or touched is the magnetic field. 2. The basic properties of the magnetic field The magnetic field exerts a magnetic force on the magnet placed in it. If a small magnetic needle is placed in the magnetic field around the bar magnet, it has a fixed new Pointing, this is the performance of the basic properties of the magnetic field,