Placement of Magnet in Simple Induction

[Syed F. Karim]

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?

 

[drag]

Greetings !

Welcome to PF Karim !

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.

 

[Graeme Robinson]

The placement of a magnet in simple induction can vary depending on the setup and design of the system. In general, a magnet is not required to pass through the middle of the windings in order to induce a voltage. As long as the magnetic field generated by the magnet passes through the coil, a current can be induced.

In the case of a tube-like or sleeve-like magnet, passing the windings through the inside of the magnet can still induce a current as long as the magnetic field is strong enough. However, this may not be as efficient as placing the magnet closer to the windings, as the magnetic field strength decreases with distance. Therefore, placing the magnet closer to the windings would likely result in a stronger induced current.

Ultimately, the most efficient placement of the magnet will depend on the specific setup and design of the system. It may be beneficial to experiment with different placements to determine the most effective and efficient option for your particular situation.