Question 12 only

2500 m The figure represents a solid cylinder with radius 21.2 cm, concentric with a thin cylindrical shell of radius 37.6 cm. The solid cylinder has a net charge of -250 C on it and the cylindrical shell has a net charge of +250 C on it. The rod and cylinder are each 2500 m long [4] #12. The surface charge density on the cylindrical shell is Give your answer in the form "a bc x 10^(x) Unit". [6] #13. A point charge, Q =+5.87 uC, is placed at a point in an electric field where the electric potential is 240 V. Determine the potential energy that the charge will have at that location. (Assume that the potential energy is zero at infinity.) Give your answer in the form "abc x 10(x) Unit" tP [16] #14. A charge of (+3.80 x 10))e is uniformly distributed on a thin glass rod 58.6 cm long. See the figure at the right. Determine the x-axis electric field at P:(0.00, +6.80 cm). 29:3 cm + 29.3 cm Answer the following by selecting the proper answers. Focus E EO + 100%