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A Planar Electromagnetic Wave Is Propagating in the +X Direction

Question 478

Multiple Choice

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,ε<sub>0</sub> = 8.85 × 10<sup>-12</sup> C<sup>2</sup>/N • m<sup>2</sup>) 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,ε<sub>0</sub> = 8.85 × 10<sup>-12</sup> C<sup>2</sup>/N • m<sup>2</sup>) 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,ε0 = 8.85 × 10-12 C2/N • m2)


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,ε<sub>0</sub> = 8.85 × 10<sup>-12</sup> C<sup>2</sup>/N • m<sup>2</sup>) 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,ε<sub>0</sub> = 8.85 × 10<sup>-12</sup> C<sup>2</sup>/N • m<sup>2</sup>) 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,ε<sub>0</sub> = 8.85 × 10<sup>-12</sup> C<sup>2</sup>/N • m<sup>2</sup>) 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,ε<sub>0</sub> = 8.85 × 10<sup>-12</sup> C<sup>2</sup>/N • m<sup>2</sup>) 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,ε<sub>0</sub> = 8.85 × 10<sup>-12</sup> C<sup>2</sup>/N • m<sup>2</sup>) 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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