the following two questions with complete reasoning and using basic equations/principles. (a) (6 points) If Jo is a constant, is it possible to realize a steady current density of the form J- Jor?. (b) (6 points) If inside some region of space there was no currents, is it possible to have a magnetic field in that region of the form B H (c) (6 points) If a is a constant vector, is it possible to find a charge distribution outside a hollow region such that the electric field inside be E = (axr)