Consider a ring of radius R with the total charge Q spread uniformly over its perimeter. What is the potential difference between the point at the center of the ring and a point on its axis a distance 9R from the center? (Use any variable or symbol stated above along with the following as necessary: ke.)
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Consider a ring of radius R with the total charge Q spread uniformly over its perimeter. What is the potential difference between the point at the center of the ring and a point on its axis a distance 9R from the center? (Use any variable or symbol stated above along with the following as necessary: ke.)
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