Part APart complete The cross section of a long coaxial cable is shown in the figure, with radii as given. The linear charge density on the inner conductor is -40 nC/m and the linear charge density on the outer conductor is -70 nC/m. The inner and outer cylindrical surfaces are respectively denoted by A, B, C, and D, as shown. (ε 0 = 8.85 × 10-12 C2/N · m2) The radial component of the electric field at a point that 44 mm from the axis is closest to...

The figure shows the cross section of a coaxial cable. The inner surface of the inner conductor, the outer surface of the inner conductor, the inner surface of the outer conductor, and the outer surface of the outer conductor are labeled as A, B, C, and D, respectively.

The radius of surface A is equal to 28 millimeters. The radius of surface B is equal to 30 millimeters. The radius of surface C is equal to 49 millimeters. The radius of surface D is equal to 51 millimeters.