- #1
physicsjock
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I'm just trying to get my head around how magnetic fields attract and repel each other,
Say you have two loops of current a distance d apart, the current through the top loop is counter clock wise when looked at from above.
If the current through the top loop is slowly decreased, a current through the bottom loop will be induced to stabilise the system, the induced current will also be counter clockwise right? To maintain the original field. So the fields due to both will be in a similar direct and attract each other?
So if the current is increased in the top loop, the induced current in the bottom loop will flow in the opposite direction, causing the loops to repel?
Is that correct or have a gotten the repel and attract the wrong way around?
So like, if you apply a current through a spring, it would compress since the from each loop is in the same direction.
Is that the right way to see it?
Thanks
Say you have two loops of current a distance d apart, the current through the top loop is counter clock wise when looked at from above.
If the current through the top loop is slowly decreased, a current through the bottom loop will be induced to stabilise the system, the induced current will also be counter clockwise right? To maintain the original field. So the fields due to both will be in a similar direct and attract each other?
So if the current is increased in the top loop, the induced current in the bottom loop will flow in the opposite direction, causing the loops to repel?
Is that correct or have a gotten the repel and attract the wrong way around?
So like, if you apply a current through a spring, it would compress since the from each loop is in the same direction.
Is that the right way to see it?
Thanks