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[課業] 電子學問題
Dec 9th 2013, 12:53, by surilov99

作者surilov99 (Ming)

看板Examination

標題[課業] 電子學問題

時間Mon Dec 9 12:53:36 2013

有關半導體之描述，何者是錯? A 半導體是负溫度係數 B 半導體內自由電子濃度與溫度正比 C 半導體溫度愈高，電阻越高 D 導體溫度愈高，傳導率越差 D錯在哪??? 串級放大所接的級數愈多，則低3分貝率值? a 越小 b 越大 c不變 d不一定 看不懂 請大家幫忙解答謝謝! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.142.161.3

→ ntu203:串級放大串接的級數越多，低頻值越小，為原來低頻的倒數倍 12/09 13:49

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