So does a coil.
I got to read this again and let it sink in.
Perhaps you're thinking of a coil's impedance, which varies with the frequency of the signal being passed through it. At DC, there isn't any inductive effect, just the DC resistance of the coil's wire. These devices seem to take on permanent changes to their resistance after a current has been passed through and then removed.
Yes, but I left out the frequency and the dc part just to keep it simple. Thanks.