Homework #29

# C b b we can write e e c b 3 108 ms43 105 t

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Unformatted text preview: answer: −9.5 × 10−6 T. Explanation: We know that the magnetic ﬁeld points along the −y axis, so we just need to ﬁnd the magnitude, which we can do using E E c= 2 , . c= B B we can write E E =c B = (3 × 108 m/s)(4.3 × 10−5 T) = 12900 N/C . B= c 2850 N/C = 3 × 108 m/s = 9.5 × 10−6 T . dedow (kfd235) – Ch24-h1 – turner – (56525) So the y component is −9.5 × 10−6 T . Correct answer: 0 T. Explanation: See the explanation for part 1. 1. −1, 0, 0 008 (part 1 of 2) 10.0 points At a time t0 , an electric ﬁeld is detected in the region shown on the left diagram in the ﬁgure below. The electric ﬁeld is zero at all other locations. At a later time t1 , an electric ﬁeld is detected in the region shown on the right diagram. The electric ﬁeld is still zero elsewhere. You conclude that an electromagnetic wave is passing through the region. The +z direction points out of the page (toward you). t0 y x netic wave is propagating in the −y direction. 009 (part 2 of 2) 10.0 points If you were to measure the magnetic ﬁe...
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## This note was uploaded on 01/22/2014 for the course PHY 303L taught by Professor Turner during the Summer '08 term at University of Texas.

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