For problems 1 to 6 A material has ur = 1, er = 10, and = 0.02 S/m at 20 GHz. Problem  <5 points> What kind of a lossy material is this? a) Lossless b) Low loss c) Quasi-conductor (Medium loss) d) Good conductor
Problem  <5 points> Find the attenuation constant a
Problem  <5 points> Find the propagation constant b
Problem  <5 points> Find the wavelength h
Problem  <5 points> Find the propagation velocity up
Problem  <5 points> Find the skin depth s
Problem  <5 points> An electromagnetic wave is propagating in a medium in the x direction. Magnitude of the electric field is measured as 12V/m at x=4m and it is measured as 8V/m at x=10m. Find the skin depth.
Problem  <5 points> The skin depth of a certain nonmagnetic conducting (good conductor) material is 3 m at 2 GHz. Determine the phase velocity in this material.
Problem  <10 points> The magnetic field of a plane wave traveling in air is given by ( ) 7 E x t kz = − ˆ50cos 2 10 . Determine the average power density carried by the wave.
Problem  <10 points> A wave traveling in a lossless, nonmagnetic medium has an electric field amplitude of 24.56 V/m and an average power density of 2.4 W/m2 . Determine the phase velocity of the wave.