- #1
Alex Mercer
- 9
- 0
Hello there, people! I am quite new here; in fact, this is my first post. I am quite strange to this place. Feeling kinda welcome, though.
Okay, so short to the point. I am an 8th grader, and my school just started teaching us about electricity. Well, the basics. I knew much about it, much further than what they have taught. It is all cool until I read about those conventional and real flows, right and left hand rules online (self study) started messing with my logics.
Let me nail it; please correct me if I am wrong.
Electric Charge
In conventional flow, the charge flows from positive to negative.
In electron flow, the charge flows from negative to positive. ( < I prefer this much more than the former)
A positive terminal has holes, or molecules/atoms with missing electrons, especially metallic substances.
A negative terminal has extra electrons, or molecules/atoms with excess electrons, especially, non-metallic substances.
Thus, the electrons from the negative terminal flows to the positive terminal to fill up the holes.
Well, this is very clear, right?
Electric Current
This was where it started to get confusing.
I mean, electrons flow from negative extras to positive holes, from negative to positive, right? Then, of course, the current, too, must flow from (-) to (+). BUT why the other way around? I see many people online claiming that it flows opposite to the charge, but no one has explained why.
The Left/Right Hand Rules
I was stubborn and way too curious. Without clearly knowing the rules of current flow, I decided to step into the left/right hand rules. Which, of course, just lead to more confusion.
What are Fleming's left/right hand rules, exactly? Left hand is used in motors, right in generators. But why? What is the difference? Does it depend on the current flow? Can you depend the direction on electric charge flow?
This is really confusing:
>http://goo.gl/2nK2tv
>http://goo.gl/PF4kwH
Plus, as we all know, there is a force field extended across a wire if a current pass. The force is shown by some arrows and circles. But what does that mean? Is the pointed direction of the arrow... the north pole? Or the south? Or none at all?
Another thing. The winding of a wire over a core. Does winding clockwise/anti-clockwise matter? Does it affect anything?
I know, that was a ton of questions, probably with bad English, which I please you to forgive (not a native speaker; I am from SE Asia). You can answer any. I am really desperate to feed my brain.
External URLs are appreciated.
Thanks a ton, in advance! Have a nice day! :D
Okay, so short to the point. I am an 8th grader, and my school just started teaching us about electricity. Well, the basics. I knew much about it, much further than what they have taught. It is all cool until I read about those conventional and real flows, right and left hand rules online (self study) started messing with my logics.
Let me nail it; please correct me if I am wrong.
Electric Charge
In conventional flow, the charge flows from positive to negative.
In electron flow, the charge flows from negative to positive. ( < I prefer this much more than the former)
A positive terminal has holes, or molecules/atoms with missing electrons, especially metallic substances.
A negative terminal has extra electrons, or molecules/atoms with excess electrons, especially, non-metallic substances.
Thus, the electrons from the negative terminal flows to the positive terminal to fill up the holes.
Well, this is very clear, right?
Electric Current
This was where it started to get confusing.
I mean, electrons flow from negative extras to positive holes, from negative to positive, right? Then, of course, the current, too, must flow from (-) to (+). BUT why the other way around? I see many people online claiming that it flows opposite to the charge, but no one has explained why.
The Left/Right Hand Rules
I was stubborn and way too curious. Without clearly knowing the rules of current flow, I decided to step into the left/right hand rules. Which, of course, just lead to more confusion.
What are Fleming's left/right hand rules, exactly? Left hand is used in motors, right in generators. But why? What is the difference? Does it depend on the current flow? Can you depend the direction on electric charge flow?
This is really confusing:
>http://goo.gl/2nK2tv
>http://goo.gl/PF4kwH
Plus, as we all know, there is a force field extended across a wire if a current pass. The force is shown by some arrows and circles. But what does that mean? Is the pointed direction of the arrow... the north pole? Or the south? Or none at all?
Another thing. The winding of a wire over a core. Does winding clockwise/anti-clockwise matter? Does it affect anything?
I know, that was a ton of questions, probably with bad English, which I please you to forgive (not a native speaker; I am from SE Asia). You can answer any. I am really desperate to feed my brain.
External URLs are appreciated.
Thanks a ton, in advance! Have a nice day! :D