- #1
jearls74
- 53
- 1
Hi everyone, I've been studying magnetic fields and alternating current generators and i have a question i need help answering. I have posted a few other questions in which i posted my generator design with magnet placement and plotted the sine waves on a chart but i have a question about the direction and length of current flow created by the magnets. i have drawn a diagram of the coils and magnets to try to understand what's happening in the conductor at a given point in time. I have read that an approaching north pole magnet creates a counter-clockwise current and an approaching south pole magnet creates a clockwise current. I also understand the alternating current moves from point A to point B and back in a determined amount of time. In the diagram below, which direction of flow is correct? I have read info on the internet that i don't know is correct so ill post it here also to show why I am a little confused. here is what i read and the diagram of the north pole magnet with single coil applies to this quote :
" I intuitively felt there was a problem. And this is where I had to do some learning about magnets and coils. And what I found out was that when the magnet passes over the coil, as it first approaches the coil the current in the coil begins to flow in one particular direction. As the magnet begins to pass over the coil, half of the coil's current is trying to move in one direction and in the other half of the coil, current is trying to move in the other direction. Nothings going no ware. Now as the magnet exist the coil, current begins to move in the opposite direction of when the magnet approached the coil.This means you only have current flow, and only a little at that, when the magnet is entering or exiting the coil. As it passes directly over the coil, when max output would be expected, close to zero output would be realized. "
can someone try to explain this or point me in the right direction?
" I intuitively felt there was a problem. And this is where I had to do some learning about magnets and coils. And what I found out was that when the magnet passes over the coil, as it first approaches the coil the current in the coil begins to flow in one particular direction. As the magnet begins to pass over the coil, half of the coil's current is trying to move in one direction and in the other half of the coil, current is trying to move in the other direction. Nothings going no ware. Now as the magnet exist the coil, current begins to move in the opposite direction of when the magnet approached the coil.This means you only have current flow, and only a little at that, when the magnet is entering or exiting the coil. As it passes directly over the coil, when max output would be expected, close to zero output would be realized. "
can someone try to explain this or point me in the right direction?