An ohm is a unit we use for electricity. It measures how hard it is for electric current to push through a wire or a part.

An ohm一個歐姆 is a unit we use for electricity是我們用來計量電的一個單位。It它 measures how hard it is for electric current to push through a wire or a part量的是電流要通過一條電線或一個零件有多難。

That “hardness” is called resistance: a high number of ohms means the current has a harder time getting through; a low number means it slips through more easily. The written symbol is Ω.

That "hardness"這種「難度」 is called resistance叫做電阻：a high number of ohms歐姆數愈高 means the current has a harder time getting through代表電流愈難通過；a low number數字愈低 means it slips through more easily代表電流愈容易通過。The written symbol書寫符號 is Ω是 Ω。

You meet this in science class and on little parts called resistors, almost never in ordinary chat. People say 100 ohms, or a 100-ohm resistor. One ohm is a small amount; real parts are often hundreds, thousands, or millions of ohms.

You你 meet this in science class會在自然課遇到這個詞，and on little parts called resistors也會在叫做「電阻器」的小零件上遇到，almost never in ordinary chat但日常聊天裡幾乎不會用到。People人們 say 100 ohms會說 100 ohms，or a 100-ohm resistor或是 100-ohm 電阻器。One ohm一個歐姆 is a small amount是很小的量；real parts實際的零件 are often hundreds, thousands, or millions of ohms常常是幾百、幾千，甚至幾百萬歐姆。

It is named after Georg Ohm, a German scientist.

It這個字 is named after Georg Ohm, a German scientist是以德國科學家 Georg Ohm 的名字命名的。

It has nothing to do with feeling, and nothing to do with the calm sound some people make when they sit quietly.

It這個字 has nothing to do with feeling跟感覺無關，and nothing to do with the calm sound some people make when they sit quietly也跟有些人靜坐時發出的那種平靜聲音無關。