Solenoid (Iron Core) Instructions

Solenoid with Soft Iron Rod.

Insert the Iron Rod so that your 

solenoid will have an Iron Core.

We're using a 6V battery for our example. 

Use connection wires to connect the battery 

to the Solenoid. Notice that we have not

 connected the second connection wire yet.

Using a ruler, place a small neodymium

magnet about 8 inches away from the

solenoid and then connect the wire. 

The magnet will jump and stick to the

solenoid as soon as the wire is attached.

If there is no reaction, move it a little closer.

Now remove the connection wire and 

place the magnet about 2 or 3 inches

 away and see if anything happens.

Remove the Iron Rod and place the magnet

3-5 inches away and see if it magnetizes.

Test all different scenarios and distances to get 

an idea of the effect of the Iron Rod in the Solenoid.