a coaxial cable consists of a long straight filament surrounded by a long coaxial cylindrical conducting shell assume charge Q is on the filament zero net charge is on the shell and the electric field is E at a particular point P midway between the filament and the inner surface of the shell next you place the cable into a uniform external field -E what is the x-component of the electric field at P then ? (a) 0 (b) between 0 and E (c) E (d) between 0 and -E (e) -E