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V_DD which one of the following is NOT true ○ ∣ if the value of R_E increase: | R_L (A)input resistance increase | |——○ v_OUT (B)output resistance increase | / (C)transcontance increase | v_IN ○—— (D)the negative feedback is enhanced | ↘ C是一定錯 我想問B選項 輸出電阻不是R_L嗎 ︱ ︱ R_E增加對輸出電阻不是沒影響 解答只給C R_E ︱ 是不是還要加個B選項啊 ︱ ≡ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 59.112.43.220
DamonF1:B選項如果考慮 Ro的話,就對了y 08/17 00:46
labuladuo:忘記考慮r_o了...感謝樓上~ 08/18 00:32