The maximum magnitude of the magnetic field of a plane harmonic wave that propagates in vacuum is B = 2 x 10-6 T. What i s the maximum value of its Poynting vector? O Smax O Smax O Smax O Smax = - 478 W/m² 2.66 x 10 W/m² -9 5.31 x 10-9 W/m² 955.8 W/m²
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