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Problem 5:* An infinite slab of charge of thickness 2zo lies in the xy-plane between zZ0 and z-zo. The volume charge density p (expressed in C/m3) is constant. a. Use Gausss law to find an expression for the electric field strength at coordinate z inside the slab i b. Find an expression for the electric field strength above the slab (z2 z0). c. Draw a graph of E from z-0 to z 3Zo.^ (Hint: use a Gaussian cylinder with its ends parallel with the xy plane, extending from -z to tz, and evaluate the total charge included in the Gaussian surface; for calculating the flux of the electric field on the left-hand side of Gausss law, analyze the symmetry of the problem, which determines the direction of the field and where it is constant)- [Answers: (a) PZ outward (b) P2O outward () Draw! ]

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