renatomerino
Well-known member
- Joined
- Aug 18, 2008
- Messages
- 76
eeTHr said:goldsilverpro said:You said that - Current is never "applied."
Are these 1.1 million hits on - "current applied" cathode - all wrong? Some of these sources sound very scholarly.
http://www.google.com/search?q=%22curre ... =firefox-a
This one I added the keyword, electrowinning. The first hit is the EPA site.
http://www.google.com/search?q=%22curre ... =firefox-a
I apply a specific amount of current to the cathode by altering the applied voltage. I would never say something so confusing, but it works.
GSP---
Your're right. They use the terms seemingly interchangeably. It's like fingernails on a chalkboard to me---because while you can apply a voltage to something (an open circuit, for example) and have no resulting current, you cannot apply just a "current" to anything, without some amount of voltage to "push" it.
Obviously, when someone says, "apply a current," they are, indeed, implying to use a voltage which will result in that amount of current flow. It just sounds wrong, that's all.
And in my opinion it can be confusing for people who are new to working with electricity. For example, certain ranges of voltage will cause different things to happen to different substances in electrolytic cells, while changes in the current flow will generally affect the rate at which those different things happen. I don't know very much about cells, other than what I've read (mostly on this forum), but a portion of what I have read has dealt with what I just mentioned. So I would think that it might be important not to confuse current with voltage, and the different ways they are used, with their different effects.
On a very strict technical level, the folks who used the term, "applied current" are misspeaking. Yet it is commonly acceptable. One example is the common term, "AC Voltage," when the AC stands for Alternating Current! It appears that quite awhile back, some people started using the term "current" as a substitute for "electricity." Very confusing. A better term would have been "Alternating Polarity" Voltage. But it's too late now. 8)
I appreciate your valued contribution item with different points of view.
If I serve my data who have served their purpose.
Keeps my head busy. Thank you.
