為甚麼電沒有顏色？

What is color?
Color is brain interperation of matters. When we perform a flame test, we know it is bright white when the subject is Mg. So how does Mg give out the color white? Upon an incident of stimulation, the electron jump from a certain energy level to another, upon this jumping, release some electrometnetic radition, hence the white light!

Does electron have color?
I really don't know the answer, but my guess is that if you have the right incident, to the electron, it will vibrate and jump to a different energy level and give a certain "color" specific for electron, however, I don't think it is in the visible spectrum, you probably can't see it! However with the right appartus, l think you can see them!

甚麼是電?
為甚麼說電沒有顏色?

這次我不同意physics8801的回答，雖然他的物理知識很高深。
能量也可以有顏色，例如可見光，它是能量，但有顏色。
所以電沒有顏色，並不是因為電是能量而沒有顏色。

電是流動的電子，所以電可以顏色，因為電子是有顏色的（不過我不知道電子是甚麼顏色）。

電本來是沒有顏色的,

因為電只是一種能量。



我們見到的天空的閃電,

或者電流產生的火花有顏色,

是因為



當電流擊落物件上時,

便會為該物件的表面餖暫地增加了能量,



那些能量很不穩定,

會立刻以光或熱的形式釋放出來,

所以我們便"看到"電。



情況就好似太陽放出很多帶電粒子打落地球一樣,

那些粒子受地磁影響,

盡數擊落南北極上空的空氣中,

形成美麗多彩的極光。

Electricity is a form of energy, not a matter. How could it have colour???