New bie question setting trimmer

Ok Guys.

I have bought 2x10k Turnable trimmers :)
I have set my Multimeter to 20k, as I only have that avalible
as the lowest value....

using the middle connection, and the connection towards the button
that you turned around. I turned it around so my multimeter reads 0.00 on the dail.

I guess that means that there is no resistance in the trimmer, Which means that more voltage will flow through the trimmer.

So if I turn it the other way, It says 10.23k
This means that maximum resistance has been set, and only stock voltage will go through ?

The red wire is at the top of the trimmer, and the black is on the middle hook.

Help a noob :D