Lemon_1800, I don't ask you to do anything illegal, but from your post it is clear that you are able to click your adsense ads as your ip address is changing frequently. We are using broadband service and so our ip address is fixed.
No, I don't think it's possible, as still they deduct my ipaddress. Though I don't have adsense publisher id, I have noted down that while signing up in gptreasure.com. I cannot sign up more than 2 accounts in gptreasure, and if I try, it will show up the message "you cannot create multiple accounts".

Moreover, I wonder what you mean by "broadband connection"? Even people call my cable internet as a broadband connection.