Potential difference between the center of disk and edge

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What is the potential difference between the center of the disk and the edge? (Use the following as necessary: R, B, ?.) [Hint: Think of the disk as a large number of thin wedge-shaped rods. The center of such a rod is at rest, and the outer edge moves at speed v = ?R. The rod moves through a perpendicular magnetic field at an average speed of ?R.]

Reference no: EM13543613

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