Figure (a) shows a nonconducting rod of length L = 5.00 cm and uniform linear charge density λ = +7.01 pC/m. Take V = 0 at infinity. What is V (in V) at point P at distance d = 9.20 cm along the rod's perpendicular bisector? (b) Figure (b) shows an identical rod except that one half is now negatively charged. Both halves have a linear charge density of magnitude 7.01 pC/m. With V = 0 at infinity, what is V (in V) at P?

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