4. Two dielectric media are separated by a charge free boundary. Medium 1 (z < 0) has relative permittivity of ɛ1 =2.5, and Medium 2 (z>0) has relative permittivity of &2=4. The electric field expression in Medium 1 is given as E1 = -30ax+ 50ay+ 70az V/m. a) Determine D2, b) Find the angle between E, and the normal to the surface.

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4. Two dielectric media are separated by a charge free boundary. Medium 1 (z < 0) has relative
permittivity of ɛr1= 2.5, and Medium 2 (z>0) has relative permittivity of ɛ2=4. The electric field
expression in Medium 1 is given as E = -30ax+ 50ay+ 70az V/m.
a) Determine D2,
b) Find the angle between E, and the normal to the surface.
Transcribed Image Text:4. Two dielectric media are separated by a charge free boundary. Medium 1 (z < 0) has relative permittivity of ɛr1= 2.5, and Medium 2 (z>0) has relative permittivity of ɛ2=4. The electric field expression in Medium 1 is given as E = -30ax+ 50ay+ 70az V/m. a) Determine D2, b) Find the angle between E, and the normal to the surface.
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