Question: Ingles : A plane electromagnetic wave propagates in the direction of > 0. The electric field is given by (,) = (,) . the constants

Ingles: A plane electromagnetic wave propagates in the direction of > 0. The electric field is given by (,) = (,) . the constants in the middle are = 90, = 0, and = 0. The wave varies cosinusoidally with the time with a frequency = 107 . At instant = 0.5107 , it is observed that a maximum of the field is reached at the point = 0.3. a) Calculate the propagation constant and the wavelength. b) Express the electric field as a function of time t. c) Obtain the corresponding magnetic field.

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Espaol: Una onda electromagntica plana se propaga en la direccin de > 0. El campo elctrico viene dado por (,) = (,) . Las constantes del medio son = 90, = 0 y = 0. La onda vara cosenoidalmente con el tiempo con una frecuencia = 107 . En el instante = 0,5107 , se observa que se alcanza un mximo del campo en el punto = 0,3. a) Calcular la constante de propagacin y la longitud de onda. b) Expresar el campo elctrico en funcin del tiempo t. c) Obtener el campo magntico correspondiente.

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