Question

For Problems 7 to 12: Electric field in a uniform medium is given as Ē =n. (3ê +4ỹ)cos(3x10° rt – kız)+n. (î+22)cos(6x10° rt +187y) Notice that these two waves are at different frequencies and they propagate in different directions. Permeability of the medium is given as u=450 Problem [7] <5 points> Calculate the relative permittivity of this medium. I Problem [8] <5 points> Calculate the intrinsic impedance of this medium. Problem [9] <5 points> Calculate k. Problem [10] <5 points> Calculate the propagation speed of the waves. Problem [11] <5 points> The magnetic field in this medium can be found as H =(4,&+H, ĝ) cos(3x10* rt - kız)+(H2,8+H, 2)cos(6x10ørt +187y). Calculate the coefficient H, Problem [12] <5 points> The magnetic field in this medium can be found as Ā=(H, +H, û cos(3x10% tt – kz)+(H, +H, 2)cos (6x10% nt+187 y). Calculate the coefficient H..

Answer 1

8 given. Ērn, 13 ñ +49) cos( 3xloft - K,z) +H. (+27) Cos (6x1080 t +18 714) are freg., two hlave at different and .: medium Propagate in different but direction. is Conetant so Permability and Permittivity Speed is Same Wis 3x108 W2= relative both Wave 6x1080 f2 = 3x108 B, ak B: 180 ta 211 21 IBM Br v= fada * 109 Vs x 108 Jur Er - J Elle O) 3 TI ler 4 Gr= 81 20.25 8 n Mo le = 40Xlo? 8.85481012 20:25 4 167.435772 a 6 Gr (9) farlz " Velocity is constant. finis Şo 3x108H X (2014) 6x108 20 X 21 1807 K,90

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