Consider a monochromatic electromagnetic plane wave propagating in the x direction. At a particular point in space, the magnitude of the electric field has an instantaneous value of 15.4 V/m in the positive y-direction. The wave is traveling in the positive x-direction. y E wave propagation x The speed of light is 2.99792 × 108 m/s, the permeability of free space is 47 x 10-7 T N/A and the permittivity of free space 8.85419 × 10-12 C²/N m². Compute the instantaneous magnitude of the magnetic field at the same point and time. Answer in units of T. What is the instantaneous magnitude of the
Consider a monochromatic electromagnetic plane wave propagating in the x direction. At a particular point in space, the magnitude of the electric field has an instantaneous value of 15.4 V/m in the positive y-direction. The wave is traveling in the positive x-direction. y E wave propagation x The speed of light is 2.99792 × 108 m/s, the permeability of free space is 47 x 10-7 T N/A and the permittivity of free space 8.85419 × 10-12 C²/N m². Compute the instantaneous magnitude of the magnetic field at the same point and time. Answer in units of T. What is the instantaneous magnitude of the
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Transcribed Image Text:Consider a monochromatic electromagnetic
plane wave propagating in the x direction. At
a particular point in space, the magnitude of
the electric field has an instantaneous value
of 15.4 V/m in the positive y-direction. The
wave is traveling in the positive x-direction.
Y
E
wave propagation
X
The speed of light is 2.99792 × 108 m/s, the
permeability of free space is 47x10-7 T - N/A
and the permittivity of free space 8.85419 ×
10-¹2 C²/N m².
Compute the instantaneous magnitude of
the magnetic field at the same point and time.
Answer in units of T.
What is the instantaneous magnitude of the
Transcribed Image Text:Poynting vector at the same point and time?
Answer in units of W/m².
What are the directions of the instanta-
neous magnetic field and the instantaneous
Poynting vector respectively?
1. B
and S=k
2. B
and S = k
3. B = î+ĵ and Sk
4. Bk and Si
=
5. B=k+i and S = 3
6. B
and ŝ=i
7. Bk
and S=j
=
8.
B = 3 + k and Si
9. Bk and S=i+j
10. B
and S=3
What is the instantaneous value of the en-
ergy density of the electric field?
Answer in units of J/m³.
What is the instantaneous value of the en-
ergy density of the magnetic field?
Answer in units of J/m³.
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