17. [-/1 Points] DETAILS SERPSE10 24.5.0P.024. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A uniformly charged insulating rod of length 17.0 cm is bent into the shape of a semicircle as shown in the figure below. The rod has a total charge of -8.00 |.lC. Find the electric potential at O, the center of the semicircle. :in 00 18. [-/1 Points] DETAILS SERPSE10 24.6.P.035.MI. MY NOTES ASK YO A spherical conductor has a radius of 14.0 cm and a charge of 58.0 JC. Calculate the electric field and the electric potential at the following distances from the center. (a) r = 8.0 cm magnitude direction electric field MN/C ---Select--- electric potential MV ---Select--- (b) r = 28.0 cm magnitude direction electric field MN/C ---Select--- electric potential MV Select--- (c) r = 14.0 cm magnitude direction electric field MN/C ---Select--- electric potential MV --Select---19. [-/1 Points] SERPSE1O 24.6.0P.027.M|. ASK YOUR TEACHER PRACTICE ANOTHER A long, straight metal rod has a radius of 5.40 cm and a charge per unit length of 36.6 nC/m. Find the electric field at the following distances from the axis of the rod, where distances are measured perpendicular to the rods axis. (a) 2.60 cm magnitude :1 we direction ---Se|ect--- v (D) 20.0 cm magnitude :l we direction ---Select--- v (c) 200 cm direction ---Select--- v