I did not understand how I should change polarities.
- Must I put the same polarity to surrounding discs ?
- If it is all about polarity, must I invert polarities, i.e. I put a positive disc so all surrounding discs become negative ?
Sorry for the confusion. If for example you place a positive disc down all surrounding discs with rings would change to the polarity of the placed disc. All surrounding discs having the same polarity as the placed disc remain unchanged.
Hope this helps.