Which electric circuit arrangement will light the bulb? A. Two ends of a bulb are attached to the positive pole of two different batteries. B. Two ends of a bulb are attached to the positive and negative poles of the battery respectively. C. Two ends of a bulb are attached to the positive and negative poles of the battery respectively. D. Both the ends of the bulb are attached to the positive pole of the battery.

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.