Are the Current Directions and Poles Correct in These Electrical Diagrams?

[Manaphy180]

Hi, I have two questions that I want to solve correctly... and help is a appreciated.

1. Is the current direction/Poles on right figure correct? https://www.dropbox.com/s/bs3lvak4wda5lqu/23.png

2. This one I'm sure is wrong... not too sure what I'm doing here... Are the currents correct at all? Poles, arrows were added by me https://www.dropbox.com/s/24iecu3bm6grlq7/25.png

Thanks in advance, If I could get insight or answers ASAP that would be great :D

 

[jedishrfu]

Check out this wiki article on the right hand rule and apply it to your problem:

http://en.wikipedia.org/wiki/Righthand_rule

midway down is the rules for current and north pole

 

[Manaphy180]

Check out this wiki article on the right hand rule and apply it to your problem:

http://en.wikipedia.org/wiki/Righthand_rule

midway down is the rules for current and north pole

You're right, I totally forgot about that, Thanks. Do you have any insight into the second question?

 

[Manaphy180]

Physics Magnetics Help

Question: This one I'm sure is wrong... not too sure what I'm doing here... Are the currents correct at all? Poles, arrows were added by me https://www.dropbox.com/s/24iecu3bm6grlq7/25.png

 

[stevan]

as I remember, current that used to determine electromagnet pole is from (+) to (-), not the current of electron.

maybe easier if use google image :)
http://www.google.co.id/imgres?imgu...=3141&page=1&start=0&ndsp=23&biw=1280&bih=822

 

[Simon Bridge]

current goes from -ve to +ve
there s a rule for working out the force on a current carrying wire in a magnetic field.

 

[jedishrfu]

Using the rule it appears that you've labeled the poles correctly. I am not sure about the cylinder thing. Are you trying to draw an electric motor schematic?

 

[Manaphy180]

Using the rule it appears that you've labeled the poles correctly. I am not sure about the cylinder thing. Are you trying to draw an electric motor schematic?

Sorry, I should have mentioned that it's a magnet with coil wrapped around it. Would the North to South Pole direction change?

 

[Manaphy180]

Thanks guys, I suppose my real question is about the electromagnetic pole from the North to South pole that acts on the object between. Does it still go from North to South, or does the wire along the magnet interfere with that?

 

[stevan]

I think it still go from north to south, just like ordinary U shaped magnet...

 

[Manaphy180]

So the diagram I drew for my 2nd question was correct? I really want to know that I'm doing this right before I get into it. Thanks

 

[stevan]

I just understand the electromagnet, I don't understand what is between the magnet in your picture sir..
As I know, magnetic field come from the north pole to the south pole...one direction, no way back

 

[NascentOxygen]

current goes from -ve to +ve

It shouldn't.

 

[NascentOxygen]

So the diagram I drew for my 2nd question was correct? I really want to know that I'm doing this right before I get into it. Thanks

No, it's not correct.

What are all those arrows you've drawn on the wire?

 

[Simon Bridge]

It shouldn't.

I was answering another thread with a different diagram it seems.

 

[NascentOxygen]

I was answering another thread with a different diagram it seems.

Don't you just hate that, when you get cross-threaded?

There exist circuits where current goes from - to + ? Where can I find one?

 

[adjacent]

There exist circuits where current goes from - to + ? Where can I find one?

Conventional current?
I don't think so

 

[PhysicoRaj]

There exist circuits where current goes from - to + ? Where can I find one?

In that thread Simon was referring to..