Particle accelerators, such as the large hadron collider, use magnetic fields to steer charged particles around a ring consider a proton ring with 36 identical bending magnets connected by straight segments. the protons move along a 1.0-m-long circular arc as they pass through each magnet. part a what magnetic field strength is needed in each magnet to steer protons around the ring with a speed of 2.0 x 10 m/s? assume that the field is uniform inside the magnet, zero outside. express your answer with the appropriate units

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→∞.