Does electron gas in metals experience viscosity?

[Christofer Br]

Does electron gas in metals experience viscosity? Also, does highly charged plasma experience viscosity?

 

[sophiecentaur]

Does electron gas in metals experience viscosity? Also, does highly charged plasma experience viscosity?

I would say that the electrons' mutual repulsion in a metal would avoid the analog of viscosity but the interaction with the positive ion cores would be what we call Electrical Resistance.
Not sure about what would happen in a plasma but there could be turbulence which could produce an equivalent to viscosity - modifying the resistance of the arc. ?