英语翻译一下什么是电流?

来源:百度知道 编辑:UC知道 时间:2024/07/12 17:32:04
电荷的定向移动叫做电路中,电流常用I表示。电流分直流和交流两种。电流的大小和方向不随时间变化的叫做直流。电流的大小和方向随时间变化的叫做交流。电流的单位是安(A),也常用毫安(mA)或者微安(uA)做单位。
电流可以用电流表测量。测量的时候,把电流表串联在电路中,要选择电流表指针接近满偏转的量程。这样可以防止电流过大而损坏电流表。
物理学名词 [electricity]。电是能的一种形式,包括负电和正电两类,它们分别由电子和质子组成,也可能由电子和正电子组成,通常以静电单位(如静电库仑)或电磁单位(如库仑)度量,从摩擦生电物体的吸引和排斥上可以观察到它的存在,在一定自然现象中(如闪电或北极光)也能观察到它,通常以电流的形式得到利用。

The orientation of the electric charge is moved and named in the circuit, daily I of electric current is expressed. The electric current divides into direct current and exchange two kinds. The ones that do not change over time in size and direction of the electric current are named direct current. The ones that change over time in size and direction of the electric current are named and exchanged. Unit of electric current Ann (A), daily milliampere (mA) or microampere (uA ) make the unit too. The electric current can use the measurement of the ampere meter . When the measurement, contact among circuit ampere meter, is it choose ampere meter indicator close to all over quantity Cheng of deflection to want. So can prevent the electric current from being too big and damage the ampere meter . Scientific name word of physics [electricity ]. It is in electricity can one kind form,including negative electricity and positive electricity two kinds, made up of electron and proton they respect