6. Which of the following phrases best describes the term impedance? a) the resistance to the movement of charge carriers b) the resistance of a capacitor c) the resistance of an inductor d) the internal resistance of a battery within an LRC circuit e) the generalized expression that combines all resistances within a circuit

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