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A Planar Electromagnetic Wave Is Propagating in the +X Direction

Question 11

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A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by   = (0.082 V/m)    .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10<sup>8</sup> m/s,μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A,   A)  18 µW/m<sup>2</sup>   B)  -18 µW/m<sup>2</sup>   C)  9.0 µW/m<sup>2</sup>   D)  -9.0 µW/m<sup>2</sup>   E)  -18 µW/m<sup>2</sup>  = (0.082 V/m) A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by   = (0.082 V/m)    .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10<sup>8</sup> m/s,μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A,   A)  18 µW/m<sup>2</sup>   B)  -18 µW/m<sup>2</sup>   C)  9.0 µW/m<sup>2</sup>   D)  -9.0 µW/m<sup>2</sup>   E)  -18 µW/m<sup>2</sup>  .What is the Poynting vector at the point P at that instant? (c = 3.0 × 108 m/s,μ0 = 4π × 10-7 T • m/A, A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by   = (0.082 V/m)    .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10<sup>8</sup> m/s,μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A,   A)  18 µW/m<sup>2</sup>   B)  -18 µW/m<sup>2</sup>   C)  9.0 µW/m<sup>2</sup>   D)  -9.0 µW/m<sup>2</sup>   E)  -18 µW/m<sup>2</sup>


A) 18 µW/m2 A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by   = (0.082 V/m)    .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10<sup>8</sup> m/s,μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A,   A)  18 µW/m<sup>2</sup>   B)  -18 µW/m<sup>2</sup>   C)  9.0 µW/m<sup>2</sup>   D)  -9.0 µW/m<sup>2</sup>   E)  -18 µW/m<sup>2</sup>
B) -18 µW/m2 A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by   = (0.082 V/m)    .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10<sup>8</sup> m/s,μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A,   A)  18 µW/m<sup>2</sup>   B)  -18 µW/m<sup>2</sup>   C)  9.0 µW/m<sup>2</sup>   D)  -9.0 µW/m<sup>2</sup>   E)  -18 µW/m<sup>2</sup>
C) 9.0 µW/m2 A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by   = (0.082 V/m)    .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10<sup>8</sup> m/s,μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A,   A)  18 µW/m<sup>2</sup>   B)  -18 µW/m<sup>2</sup>   C)  9.0 µW/m<sup>2</sup>   D)  -9.0 µW/m<sup>2</sup>   E)  -18 µW/m<sup>2</sup>
D) -9.0 µW/m2 A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by   = (0.082 V/m)    .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10<sup>8</sup> m/s,μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A,   A)  18 µW/m<sup>2</sup>   B)  -18 µW/m<sup>2</sup>   C)  9.0 µW/m<sup>2</sup>   D)  -9.0 µW/m<sup>2</sup>   E)  -18 µW/m<sup>2</sup>
E) -18 µW/m2 A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by   = (0.082 V/m)    .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10<sup>8</sup> m/s,μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A,   A)  18 µW/m<sup>2</sup>   B)  -18 µW/m<sup>2</sup>   C)  9.0 µW/m<sup>2</sup>   D)  -9.0 µW/m<sup>2</sup>   E)  -18 µW/m<sup>2</sup>

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