EE311 Homework 11

EE311 Homework 11 - 15 s 1 B) 1.26 10 7 m-1 C) 1 10 8 D)...

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EE 311 Homework 11 (Due Wednesday, April 20, 2011, Class time) Time-Harmonic Fields, Wave Propagation (4 questions) 1. (25 pts) 2. (25 pts) 3. (25 pts) 4. (25 pts) Answer the following question for an electromagnetic field that has the following magnetic field intensity that is described by H(x,t) = 30cos[(1.26 × 10 15 s 1 )t + (1.26 × 10 7 m -1 ) x ] a z V m (5 pts) The frequency of the wave is A) 2 x 10 14 Hz B) 1.26 × 10 7 Hz
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C) 2 × 10 6 Hz D) 1.26 x 10 15 Hz (5 pts) The wave number of the wave is A) 1.26 × 10
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Unformatted text preview: 15 s 1 B) 1.26 10 7 m-1 C) 1 10 8 D) none of the above (5 pts) The phase velocity of the wave is A) 1 10 8 m s a z B) 1 10 8 m s a z C) 1 10 8 m s a x D) 1 10 8 m s a x E) 3 10 8 m s a x (5 pts) The wavelength of the wave is A) 4.99 10 15 m B) 4.99 10-7 m-1 C) 1.26 10 7 m D) 1.26 10 15 m (5 pts) The wave propagation direction is A) x B) x C) y D) y E) z F) z...
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EE311 Homework 11 - 15 s 1 B) 1.26 10 7 m-1 C) 1 10 8 D)...

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