8) The two section of Wire shown are made of the same metal. The diameter of segment 1 is 2.0 mm, and the diameter of segment 2 is 4.0 mm. Current 11 flows into segment 1 from the left. How does the electron drift speed v: in segment 2 compare to the electron drift speed v1 in segment 1? A) V3240 V1 C) V2=vi D) V3205 V1 E) V: = 0.25 V1 11) An insulating sphere has a radius of 3.0 cm and a total charge +8.0 nC that is distributed uniformly throughout the sphere. A proton is initially held at rest 1 cm above the surface of the sphere and then released. Which of the following statements best describes the motion of the proton after it is released? A) The proton will orbit around the sphere, following lines of constant potential. B) The proton will move towards the sphere, towards higher potential. C) The proton will move away from the sphere at a steady speed. D) The proton will move away from the sphere at an increasing speed. E) The proton will move away from the sphere at a speed that initially increases and then decreases. 12) For the proton in the previous question, what will be the maximum velocity it reaches after being released? A) 3.3 X104m/s B) 5.9 x105 m/s C) 6.8 x105 m/s D) 2.9 x 106 m/s E) 3.3 x106m/s