本题目来源于试卷: Electromagnetic Waves，类别为 IB物理学
[问答题]
If a radio transmittqswzsxg758k6j p 02 :*xboyuver has a vertical antenn of/i bz48 bo+25 ;tho(d qke:(z;nkg.qrzp gva, should a receiver’s antenna (rod type) be 8eo;;:pobz/ dhz(qg52fin+ok(.z 4rbtkqvg vertical or horizontal to obtain best reception?
参考答案:
The receiver antenna should
also be vertical for obtaining the best reception. The oscillating carrier electric field is
up-and-down, so a vertical antenna would “pick up” that signal better, since
the electrons in the metal antenna would be forced to oscillate up and down
along the entire length of the vertical antenna and creating a stronger
signal. This is analogous to polarized
light, as discussed in chapter 24.
本题详细解析:
暂无
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