Mathematics · Electromagnetic Waves Calculations
The electric field amplitude of an electromagnetic wave in free space is E0 = 90 N/C and its frequency is ν = 50.0 MHz. Find the values of the magnetic field amplitude B0, wave number k, and wavelength λ (Take c = 3 × 108 m/s and π ≈ 3.14).
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- 1B0 = 400 nT, k = 1.02 rad/m, λ = 6.0 m
- 2B0 = 400 nT, k = 1.05 rad/m, λ = 6.0 m
- 3B0 = 300 nT, k = 1.05 rad/m, λ = 6.0 m✓
- 4B0 = 300 nT, k = 1.02 rad/m, λ = 3.0 m
Correct answer
B0 = 300 nT, k = 1.05 rad/m, λ = 6.0 m
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