A plane wave travels through air. The electric field has the form Ē(t)=0.5 sin(@ot-kx) 2 [V/m] Additional measurements indicate that the wavelength is λ=30cm. a. What is the direction of propagation? b. c. Find the propagation constant k and the frequency . Write the electric and magnetic fields in phasor form. d. Find the magnetic field, H(t).

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Chapter1: Units, Trigonometry. And Vectors
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**Plane Wave in Air: Analysis of Electric and Magnetic Fields**

**Given:**  
A plane wave travels through air, described by the electric field:  
\[ \vec{E}(t) = 0.5 \sin(\omega t - kx) \hat{z} \quad [\text{V/m}] \]  

Additional measurements indicate the wavelength is \(\lambda = 30 \, \text{cm}\).

**Tasks:**

a. **Direction of Propagation**  
   - Identify the direction in which the wave is moving.

b. **Propagation Constant and Frequency**  
   - Determine the propagation constant \(k\) and frequency \(\omega\).

c. **Phasor Form of Electric and Magnetic Fields**  
   - Express the electric and magnetic fields in phasor notation.

d. **Magnetic Field \(\vec{H}(t)\)**  
   - Calculate the time-varying magnetic field corresponding to the electric field.
Transcribed Image Text:**Plane Wave in Air: Analysis of Electric and Magnetic Fields** **Given:** A plane wave travels through air, described by the electric field: \[ \vec{E}(t) = 0.5 \sin(\omega t - kx) \hat{z} \quad [\text{V/m}] \] Additional measurements indicate the wavelength is \(\lambda = 30 \, \text{cm}\). **Tasks:** a. **Direction of Propagation** - Identify the direction in which the wave is moving. b. **Propagation Constant and Frequency** - Determine the propagation constant \(k\) and frequency \(\omega\). c. **Phasor Form of Electric and Magnetic Fields** - Express the electric and magnetic fields in phasor notation. d. **Magnetic Field \(\vec{H}(t)\)** - Calculate the time-varying magnetic field corresponding to the electric field.
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