Placement of Magnet in Simple Induction

  • #1
Syed F. Karim
14
0
In order to induce a voltage in a coil, is a magnet reqired to pass through the middle of the windings? So the real question is, if I have a tube-like or sleeve-like magnet, can I pass the windings throught the inside of the magnet and still induce a current? Are both ways essentially the same, or is one more efficient than the other?
 

Answers and Replies

  • #2
drag
Science Advisor
1,100
1
Greetings !

Welcome to PF Karim ! :smile:

In order to induce a current in a conducting coil
the magnetic flux, which is basicly the magnetic field
per area (<Tesla> or <Gauss> / <ft^2> or <m^2> ), must change.
Now you can move the magnet in any way near the coil
but the most "drastic" change in the magnetic flux
will ussualy occur if the magnet is moving inside the coil.

Of course, you can also "transfer" the magnetic flux
change which occurs when you move the magnet "through" a
conducting core extending inside the coil.

Live long and prosper.
 

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