When two or more different capacitors are connected in series across a potential source, which of the following statement must be true? a. The capacitor with the largest capacitance has the most charge. b. The potential difference across each capacitor is the same. c. Each capacitor carries the same amount of charge.

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c