Problem B12: Consider the infinitely long solid cylinder shown in the figure above. The cylinder has a radius R, and has a uniform charge volume density of n1 ρ0 > 0. What is the voltage difference between a point located a distance of r = R/n2, labeled "b", and the center of the cylinder, labeled "a"? That is if V(a)-V(b) = ρ0R2/(ε0 n3), what is n3 ?

n1 = n2 = Input n3:
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