(a) Figure (a) shows a nonconducting rod of length L = 6.60 cm and uniform linear charge density A = +9.39 pC/m. Take V =0 at infinity. What is Vat point Pat distance d = 6.70 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 9.39 pC/m. With V=0 at infinity, what is Vat P? P P - L/2 1/2 L/2 - - L/2 (a) (b) (a) Number 0.0609638 Units V v (b) Number 0 Units V