The time averaged Poynting vector, in W/m2, for a wave with overrightarrow E = 24e^j( t + Bz )overrightarrow a _yV/m in free space

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Electromagnetic Field Theory

The time averaged Poynting vector, in W/m², for a wave with $$\overrightarrow E = 24{e^{j\left( {\omega t + Bz} \right)}}{\overrightarrow a _y}{\text{V/m}}$$ in free space

A) $$ - \frac{{2.4}}{\pi }{\overrightarrow a _z}$$ B) $$\frac{{2.4}}{\pi }{\overrightarrow a _z}$$ C) $$\frac{{4.8}}{\pi }{\overrightarrow a _z}$$ D) $$ - \frac{{4.8}}{\pi }{\overrightarrow a _z}$$

Answer & Solution

Correct Answer: Option A

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The time averaged Poynting vector in W m2 for a wave...

The time averaged Poynting vector, in W/m2, for a wave with $$\overrightarrow E = 24{e^{j\left( {\omega t + Bz} \right)}}{\overrightarrow a _y}{\text{V/m}}$$ in free space

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The time averaged Poynting vector, in W/m², for a wave with $$\overrightarrow E = 24{e^{j\left( {\omega t + Bz} \right)}}{\overrightarrow a _y}{\text{V/m}}$$ in free space