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Posted: **Fri May 06, 2022 6:34 am**

: Question 7 If Electric Field Of An Em Wave Propagating In A Dielectric Medium With Relative Permittivity 2 56 Is E Z 1 (16.28 KiB) Viewed 19 times

: Question 7 If Electric Field Of An Em Wave Propagating In A Dielectric Medium With Relative Permittivity 2 56 Is E Z 2 (11.62 KiB) Viewed 19 times

QUESTION 7 If electric field of an EM wave propagating in a dielectric medium with relative permittivity € = 2.56 is E(z, t) = y 10 cos(67 x 10°t - kz), find the expression for corresponding magnetic field H(z, t) for this wave.
QUESTION 8 Q-(R.0.0 A short (or Hertzian) dipole antenna is excited by a current lo= 10 A. If the length of dipole antenna is λ/20, find the maximum radiated power density in µW/m² at a distance of 1 km away from the antenna in air.