1. The problem statement, all variables and given/known data http://upload.lsforum.net/users/public/c7843Untitleda235.jpg when the switch is closed what happen to the golden ring when the switch is closed? explain the switch remains closed. what happen to the ring if the slide contact of the rheostat i) is kept at A ii) moves from A to B iii) oscillates to and fro between A and B continuously with 1 Hz ? explain the aboves 2. Relevant equations it is a theorem about induced current 3. The attempt at a solution i am wondering when it contact at A the resistance decreases, so the current increases of circuit, then y the golden ring remain stationary?