[外文翻譯]電壓、電流和功率/Voltage，Current and Power
內(nèi)包含中文翻譯和英文原文，內(nèi)容完善，建議下載閱覽。

①中文頁(yè)數(shù) 3

中文字?jǐn)?shù) 2266

②英文頁(yè)數(shù) 5

英文字?jǐn)?shù) 7142

③ 摘要
在電路中我們一般比較注意兩個(gè)量；電壓和電流。電壓也稱作電勢(shì)差或電動(dòng)勢(shì)，單位為伏，電壓通?？梢杂梅?、千伏、毫伏或微伏來表示。
電流是電荷流過—個(gè)點(diǎn)的速率。測(cè)量的單位是安。通常電流用安、毫安、微安、表示，偶爾也可以用皮安來表示。按照慣例，電路中的電流被認(rèn)為是從正端流向負(fù)端，上電子足以反方向流動(dòng)的。這里有一些簡(jiǎn)單的電壓、電流和功率之間的規(guī)則：

There are two quantities that we are like to keep track of in electronic circuit :voltage and current .The voltage is also called potential difference or electromotive force . The unit of measure is volt , with voltages usually expressed in volts (V) ,kilovolts (kV) , millivolts (mV) , or microvolts (μV).
Current is the rate of flow of electric charge passing a point . The unit of measure is the ampere , or amp ,with currents usually expressed in amperes (A) ,milliamperes (mA) ,microamperes (μA) ,nanoamperes (nA) ,or occasionally picoamperes (pA) .By convention , current in a circuit is considered to flow from a more positive point to a more negative point , even though the actual electron flow is in the opposite direction .


④關(guān)鍵字 電壓/Voltage