ac and dc

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So you're meant to be an apprentice.. and are still in school, and know nothing of electricity?
 
Seriously mate, and please don't take this the wrong way, but this really is day one electrical basics - you say you're in school, I assume you mean you're in high school, in which case you should cover this in 2nd or 3rd year physics, so wait until then, but kudos to you for taking an interest!

If however you mean you are doing electrics in college, you really really should already have a firm grasp on this, if not then maybe your instructors are not doing their job, or possibly sparkying is not for you.

I would also point out that their is a wealth of information available on line, and a quick gooooogle search can give you far more than asking on a DIY forum!
 
ac favord for overhead railway electric power
dc prefered for ground run rail systems [3rd and fourth rail ]
 
AC_DC.jpg

 
is that you in the middle bas you sound like a bit of a t**t so it wouldent suprises me if you looked like one
If we're getting personal, I bet your the one to the left of him that looks like a peado.

There is a photo of ban onthe forum somewhere. But what does it matter what he looks like??
 
If you are wanting help here, it is much better to ask questions properly and then be polite in your responses.

However, the sun is shining and I'm feeling good today. Now I believe that you young people like to watch stuff on computer. So here are a couple of items on youtube that may be of help.

There are lots of other videos to watch on the same subject on youtube.

http://www.youtube.com/watch?v=wo2x0_AuASM&feature=related
http://www.youtube.com/watch?v=iDH-RiDxqE4&NR=1

this is probably the best one :LOL:
http://www.youtube.com/watch?v=1XUQnrNd8Y8&feature=related

TTC

Electricity is actually made up of extremely tiny particles called electrons, that you cannot see with the naked eye unless you have been drinking.
 

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