B = 12 x 10 sen(1.8 × 107x + 5.4 × 105t + 7)j + 6 × 10-ºcos(1.8 × 107x + 5.4 x 105t + 1/2)k,

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The magnetic field of a harmonic plane electromagnetic wave is given by the expression (image 1)
where all quantities are expressed in the international system of measurements.

The averaged energy per unit of time and unit of area that this electromagnetic wave transports is: 

B = 12 x 10-6 sen(1.8 × 107x + 5.4 × 1015t + 1)j + 6 × 10-°cos(1.8 × 107x + 5.4 x 1015t + 7/2)k,
Transcribed Image Text:B = 12 x 10-6 sen(1.8 × 107x + 5.4 × 1015t + 1)j + 6 × 10-°cos(1.8 × 107x + 5.4 x 1015t + 7/2)k,
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