A) in a kind of medium which not a conductor (non-conducting medium) σ= 0 , 𝜀𝑟 = 9 , 𝜇𝑟=

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A) in a kind of medium which not a conductor (non-conducting medium) σ= 0 , 𝜀𝑟 = 9 , 𝜇𝑟=1 found that the magnetic field intensity H(x,y,z;t) = H(z,t) = ax150cos(10^10t- Bz) A/m Calculate the electric field strength E(x,y,x;t) and B
B) Briefly describe The following causes of electromagnetic power loss when traveling through a medium
1. A medium with good conductive properties. 2. A medium that is a dielectric material.