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7.1 The magnetic field of a wave propagating through a certain nonmagnetic material is given by H = 2.30 cos(10%: -0.5) (m/m). Find the following: *(a) The direction of wave propagation. (b) The phase velocity *C) The wavelength in the material. (d) The relative permittivity of the material. (e) The electric field phasor. 7.7 The magnetic field of a plane wave propagating in a nonmagnetic material is given by H = x 60 cos(21 x 10+0.17 Y) 130 cos(27 x 10'+ +0.Lay) (m/m). Determine *(a) The wavelength (b) € (e) E. 7.18 Dry soil is characterized by fr = 2.5. Hi = 1, and a = 10+ (S/m). At each of the following frequencies. determine if dry soil may be considered a good conductor, a quasi-conductor, or a low-loss dielectric, and then calculate a. B. 2. Mp. and ne (a) 60 Hz (b) 1 KHZ (e) I MHz (d) 1 GHz
The electric field of a plane wave propagating in a nonmagnetic medium is given by E = 2 25e-30x cos(2x x 10°: – 40x) (V/m). Obtain the corresponding expression for H. The magnetic field of a plane wave propagating in a nonmagnetic medium is given by H=960e 10 cos(27 x 108: – 122) (mA/m). Obtain the corresponding expression for E.