A coaxial cable consists of a central cylindrical wire and a concentric cylindrical conductor, with the space between filled by a dielectric material. If the radius of the wire is 2.5mm, the inside radius of the cylindrical conductor is 2.0mm, and the dielectric is polystyrene have a dielectric constant k = 2.6 a.) what is the capacitance of a 1.0m length of the cable? b.) if the central wire is at -10.0V with respect to the outer conductor, how much excess charge must be present?b.)How many electrons is this?d.)from what depth in the wire have they come? compare this depth to the Bohr radius. The wire copper in which the density of conduction electrons is n = 8.49 *10^28 electrons/m^3