conductive

A paper strip fixed at one end to a large ball shows similar movements when its free end is pointed and made conductive.

In the photophone the conductive wire has already been dispensed with, and a ray of light is used in its place.

The trouble with a coherer is that when once it becomes conductive it remains so unless the filings be shaken apart.

And so partially conductive air forms a partial barrier to the waves.

In like manner are the wireless waves "sucked up" by the partially conductive atmosphere.