HI,
The GHK equation tells us the membrane potential is primarily created by the potassium since its permeability is equal to 1.
It seems possible to conclude that the conductance of potassium is high.
In the HH model, at rest, the K conductance is clearly null as the Na conductance (seems also logical).
How the K+ conductance may be high in a equation and its contrary (null) in the HH model?