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The amplitude of the magnetic field of an electromagnetic wave in vacuum is B0 = 300 nT. What is the amplitude of the electric field part of the wave? (Given speed of light in vacuum, C = 3 × 108 ms-1) |
90 N/C 900 N/C 9 × 103 N/C 0.9 N/C |
90 N/C |
$E_0 = cB_0 = 3\times 10^8 \times 300\times 10^{-9} =90 N/C$ |
