Question: Figure P25.28 shows that the spacing between equipotential surfaces surrounding a charged particle increases with radial distance (r) away from the particle. (a) How would

Figure P25.28 shows that the spacing between equipotential surfaces surrounding a charged particle increases with radial distance $r$ away from the particle.

(a) How would the potential have to depend on $r$ in order to make the spacing between equipotential surfaces uniform?

(b) How would the electric field depend on $r$ in that case?

Data from Figure P25.28

E m:

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