电场和磁场有什么区别

Thekey difference between electric field and magnetic field这是电场描述了吗area around the charged particles, whereas magnetic field describes the area around a磁铁where the poles of the magnet show the force of attraction or repulsion.

The term electric field was introduced by Michel Faraday and refers to the surrounding of an electric charge unit that can exert a force on other charged particles in the field. Magnetic field is a term that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. This concept was introduced by Hans Christian Oersted.

CONTENTS

1.Overview and Key Difference
2.What is an Electric Field
3.What is a Magnetic Field
4.Electric Field vs Magnetic Field in Tabular Form
5.概括

What is an Electric Field?

电场是电荷单元的周围环境，该电荷单元可以在现场的其他带电颗粒上施加力。我们可以缩写这个术语E-fieldas well. The charged particles in the electric field can be either attracted or repelled by the central charge unit, depending on the electrical charges and their magnitude.

在考虑原子量表时，电场负责原子核与电子之间的吸引力。这种吸引力的力是将原子核和电子结合在一起以构成原子结构的胶水。此外，这些吸引力在化学键形成中很重要。电场的测量单位为每米伏（v/m）。该单元完全等于SI单元系统中每库仑（N/C）的牛顿单元。

What is a Magnetic Field?

Magnetic field is a term that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. It is avector field. Usually, a moving charge in a magnetic field tends to experience a force that is perpendicular to its own velocity and to the magnetic field.

When considering apermanent magnet, it has its magnetic field pulling onferromagnetic materials, e.g. iron, and attract or repel other magnets. Additionally, a magnetic field tends to vary with the location of the field, and it can exert a force on some non-magnetic materials by affecting the motion of the outer atomic electrons.

Usually, a magnetic field surrounds a magnet or magnetic material. These magnetic fields are created from electric currents, such as electron movements occurring in electromagnets. Furthermore, they can be formed from electric fields that vary with time. Both strength and direction of a magnetic field vary with the location. We can describe it mathematically using a function assigning a vector to each point of the space (we can name it as vector field).

电场和磁场有什么区别?

米歇尔·法拉第（Michel Faraday）引入了电场一词，而汉斯·克里斯蒂安·奥斯特（Hans Christian Oersted）引入了磁场。电场和磁场之间的关键区别在于，电场描述了带电颗粒周围的区域，而磁场描述了磁铁周围的磁极杆周围的区域，其中磁铁的极点显示了吸引力或排斥力。此外，电场可以同时作用于移动和非移动带电颗粒，而磁场仅作用于移动带电的颗粒。

The following infographic lists the differences between electric field and magnetic field in tabular form.

概括– Electric Field vs Magnetic Field

The key difference between electric field and magnetic field is that electric field describes the area around the charged particles, whereas the magnetic field describes the area around the magnet where the poles of the magnet show the force of attraction or repulsion.

Reference:

1. “Electric Field vs Magnetic Field – Differences And Comparision.”BYJUS, BYJU’S, 31 July 2020.

Image Courtesy:

1. “VFPt image charge plane horizontal” By Geek3 – Own work(CC BY-SA 3.0)via Commons Wikimedia
2. “Magnetic field of horseshoe magnet” By Frank Eugene Austin (1916) Examples in Magnetism, 2nd Ed., Hanover, N.H., USA, p.31, plate 2 on Google Books (Public Domain) via Commons Wikimedia