The electric field strength equation has the form E(z, t) = Ex cos(wt - Boz)i + Ey cos(wt - Boz - y). The figure below shows the strength of the electric field ☛ and y components of the direction and the sum vector of the electric field strength drawn ellipse. The wave is in the medium ₁ = 9 and μ = 1. The vector drawn by the ellipse rotates clockwise as the wave is thought to travel from the screen towards you. Ex [V/m] 10 E, [V/m] 5 0 -5 -10 0 5 0.5 -5 0 0.5 1 1.5 1 1.5 V/m 2 M 3 3.5 4 2 2.5 z [m] Angular frequency w -106 rad/s Wave number Bo 2.5 rad/m 3 3.5 4 4.5 Phase angle (in radians range(-pi,pi)) 4.5 5 5 E, [V/m] 10 8 6 4 2 -2 -4 Determine those appearing in the electric field strength equation Ex, Ey, w, Bo and p. (Give answers to at least two significant figures.) Electric field strength The amplitude of the component parallel to the x-axis Ex -6 -8 The amplitude of the component of the electric field strength along the y-axis Ey V/m -10 -10 -5 z = 0 0 E [V/m] 5 10

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The electric field strength equation has the form Ē(z, t) = Ex cos(wt — Boz)i + Ey cos(wt — Boz – y)j. The figure below shows
the strength of the electric field and y components of the direction and the sum vector of the electric field strength drawn
ellipse. The wave is in the medium = 9 and r = 1. The vector drawn by the ellipse rotates clockwise as the wave is thought to
travel from the screen towards you.
Ex [V/m]
10
5
Ę, [V/m]
0
-5
-10
5
0
-5
w
2 2.5
3
0
0.5
m
1.5
2
0.5
1
1
Wave number Bo
1.5
Angular frequency w
- 106 rad/s
rad/m
2.5
z [m]
3.5
3
4
Phase angle (in radians range(-pi,pi))
3.5 4
4.5
4.5
E [V/m]
10
8
6
4
2
0
-2
-4
-6
Determine those appearing in the electric field strength equation Ex, Ey, w, Bo and y.
(Give answers to at least two significant figures.)
Electric field strength The amplitude of the component parallel to the x-axis Ex
V/m
-8
The amplitude of the component of the electric field strength along the y-axis Ey
V/m
-10
-10
-5
z = 0
0
E [V/m]
5
10
Transcribed Image Text:The electric field strength equation has the form Ē(z, t) = Ex cos(wt — Boz)i + Ey cos(wt — Boz – y)j. The figure below shows the strength of the electric field and y components of the direction and the sum vector of the electric field strength drawn ellipse. The wave is in the medium = 9 and r = 1. The vector drawn by the ellipse rotates clockwise as the wave is thought to travel from the screen towards you. Ex [V/m] 10 5 Ę, [V/m] 0 -5 -10 5 0 -5 w 2 2.5 3 0 0.5 m 1.5 2 0.5 1 1 Wave number Bo 1.5 Angular frequency w - 106 rad/s rad/m 2.5 z [m] 3.5 3 4 Phase angle (in radians range(-pi,pi)) 3.5 4 4.5 4.5 E [V/m] 10 8 6 4 2 0 -2 -4 -6 Determine those appearing in the electric field strength equation Ex, Ey, w, Bo and y. (Give answers to at least two significant figures.) Electric field strength The amplitude of the component parallel to the x-axis Ex V/m -8 The amplitude of the component of the electric field strength along the y-axis Ey V/m -10 -10 -5 z = 0 0 E [V/m] 5 10
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