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Name: Collins
Status: educator
Grade: N/A
Location: UT 
Country: N/A
Date: 1/1/2006
Question:
Why does the brush on the positive pole on slip rings of machines wear out more than the negative brush?

Replies:
Dear Collins,

I have searched the web for some information on this question, but found nothing. In my minor experience, I have never noticed this effect. How did you learn of this effect?? I would appreciate hearing from you.

Best, Dick Plano,
Professor of Physics emeritus, Rutgers University


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