Electric Potential Name: Names of Group Members (Only write the names of those present): V = ke Work or explanation in words is necessary to receive full points. Review: Use Gauss's Law to find the electric field due to a large sheet of charge with a surface charge density of o. Your expression should agree with what we found in class. A thick ring with an inner radius R, and outer radius R2 has a uniform area charge density o. a. Find the electric potential at point P, Vp. P is on the axis passing through the center of the disk. (Hint: you will need r = Vz2 +r" the integral: r'dr' Vr12 + z2 + C; R2 Vr12 + 2 2 However, you should complete the definite integral instead R1 of the indefinite integral.) b. In class, we found that the electric potential at point P for a disk that has a uniform charge density of o is Vp = 2nke(Vz2 + R2 - z). Does the electric potential you found above agree as R1 - 0 and R2 = R? Show this below