I was on a job troubleshooting some a pair of three way switching systems when I noticed that when I checked the voltage on the "unenergized" switch leg I was reading 34 volts. The guy running the job said it was induced voltage and not to worry about it. I didn't think about it again until I was on a job and turning on the the two breakers that feed a 12/3 mc that fed two circuits of recepticles. I turned one on and just to do some checking I checked the wire that was on the red wire of the mc and although the breaker was off, it had 34 volts on it.
I touched the wire and put my finger to ground and could feel nothing. I remembered someone telling me about a kind of phantom instrument reading or something and wondered if anyone had any explanations on why this would be.
Could it be a neutral or proximity problem, or do you agree with the opinion I got that it was "induced"?