PM End Date: 9/19/2022 11:59:00 PM (8%) Problem 6: A single point charge in vacuum has imaginary equipotential surfaces around it which are spherical due to the symmetry of the situation. Assume we have a charge q = 4.5 x 10-10 C and such a surface with potential V = 64 V. A 33% Part (a) Input an expression for the radius of this surface, r, in terms of the given quantities. A 33% Part (b) What is the radius, in meters? DA 33% Part (c) What is the radius, in meters, of a 10,000 V equipotential surface? r2 = Grade Summary Deductions Rotential 0% 100%