ohm英语

欧姆定律: Ohm's LawOhm's Law defines the relationships between (P) power, (E) voltage, (I) current, and (R) resistance. One ohm is the resistance value through which one volt will maintain a current of one ampere. ( I ) Current is what flows on a wire or conductor like water flowing down a river. Current flows from negative to positive on the surface of a conductor. Current is measured in (A) amperes or amps. ( E ) Voltage is the difference in electrical potential between two points in a circuit. It's the push or pressure behind current flow through a circuit, and is measured in (V) volts. ( R ) Resistance determines how much current will flow through a component. Resistors are used to control voltage and current levels. A very high resistance allows a small amount of current to flow. A very low resistance allows a large amount of current to flow. Resistance is measured in ohms. ( P ) Power is the amount of current times the voltage level at a given point measured in wattage or watts.

前缀：M：兆k：千m：毫μ：微七个基本单位的原形：g：克（实际为kg千克）m：米s：秒A：安（培）K：开尔文（C摄氏度，F华氏度）mol：摩尔lx：勒克斯其他常见单位：N：牛顿Pa：帕斯卡J：焦耳V：伏特Ω：欧姆还有需要的尽管说，一下子就不列了。

欧姆 [ōu mǔ]ohm

你好!欧姆ohm 英[əʊm] 美[oʊm] n. 欧姆定律; <电>欧姆（电阻单位）; [例句]Given the voltage and the current, the resistance can be determined according to Ohm's Law.已知电压和电流，根据欧姆定律，就可以求出电阻。