0.55 nc O 1.7 nc O 3.4 nc O 5.6 nc O 7.9 nc Question 5 hp HEWLETT-PACKARDAn infinite slab of charge of thickness 2d lies in the xyplane between z = -d and z = +d. The volume charge density is a constant (rho). Choose the expression that describes the electric field strength above the slab (z > d). A) pa B) 2pd 50 5pd C) D) O A O B OC, hp HEWLETT-PACKARD13 pts The picture shows a cross-sectional view of a neutral and hollowed out metal sphere with an electric field at the outermost surface of E= 55 N/C pointing out of the sphere. Calculate the , magnitude and sign of the charge Q located in the center of the cavity. For this problem, R = 0.75 m, r = 0.30 m, and you can assume the conductor is in electrostatic equilibrium. R O hp HEWLETT-PACKARD