4.下列關於基本電路定理的敘述,何者正確? (A)在應用重疊定理時,移去的電壓源兩端以開路取代 (B)根據戴維寧定理,可將一複雜的迴路以一個等效電壓源及一個等效電阻串聯來取代 (C)節點電壓法是應用克
6.下列有關串聯電路之敘述,何者錯誤? (A)電阻、電感串聯電路,電阻愈大,則時間常數愈大 (B)電阻、電容串聯電路,電阻愈大,則時間常數愈大 (C)電阻、電容串聯電路,電容愈大,則電路所需之穩態時間
13.下列有關二極體的敘述,何者正確? (A)在順偏時,擴散電容與流過之電流無關 (B)空乏區電容隨外加逆向偏壓之增加而減少 (C)當外加逆向偏壓增加時,空乏區寬度將減少 (D)在固定之二極體電流下,
14.在矽半導體材料中,摻入三價的雜質,請問此半導體形成何種型式?半導體內部的多數載子為何?此塊半 導體之電性為何? (A)N型半導體;電子;電中性 (B)N型半導體;電子;負電 (C)P型半導體;電
1. The immigrant workers work hard but get ____ or low wages.(A) abundant (B) hasty (C) meager (D) e
5. The local ____ were very satisfied with the mayor’s new policy to increase the supply ofhousing.(
6. Professor Johnson ____ his speech in order not to bore anyone.(A) assumed (B) abbreviated (C) arb