Electromagnetic waves and their characteristics; electromagnetic spectrum and elementary facts about uses of radio waves, microwaves, infrared, visible, UV, X-rays, gamma rays.
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Q1 · Electromagnetic Waves · EASY
An electromagnetic wave is propagating in vacuum along the z-direction. The electric field is oscillating with amplitude E₀ = 30 V/m along the x-direction. The amplitude of the magnetic field (in Tesla) is approximately:
Q2 · Electromagnetic Waves · EASY
An electromagnetic wave propagates in vacuum with electric field amplitude E₀ = 6 × 10² V/m. The magnitude of the magnetic field amplitude B₀ (in Tesla) is: