I know rubbing two objects of different materials together will result in a negative charge on whichever material has a higher electron affinity. However, I was wondering if a negatively charged conductor (which has low electron affinity) and a neutral insulator are touching, will electrons move to the insulator over time (no friction between them)? I know there would be a potential difference since the conductor is negatively charged, so would that be enough to make the electrons move? Or does there absolutely need to be friction?
FIRSTLY, INSULATED OBJECT CANNOT LET THE CURRENT TO SURPASS SO NEITHER THE CHARGE IS ACCUMULATED. BUT IF U SAY A NEUTRAL BODY THEN THE CASE IS APART i.e different. SO IF U SAY A NEUTRAL BODY THEN YES ELECTRONS GET MOVED DURING INDUCTION AS ELECTRONS WEIGHT LESSER THAN PROTONS SO COMPELLING ELECTRONS TO MOVE DURING INDUCTION GRADUALLY TAKES PLACE.. BY THIS I MEAN U DON'T NEED FRICTION PARTICULARLY.
I WOULD BE GLAD FOR ANY FEED BACKS.