問題詳情
17. NPN型電晶體於主動區(active region)工作時,其三接腳(B、C 及E)電壓(VB、VC及VE)之大小關係,下列何者正確?
(A) VB>VC>VE
(B) VC>VE>VB
(C) VC>VB>VE
(D) VE>VC>VB
(A) VB>VC>VE
(B) VC>VE>VB
(C) VC>VB>VE
(D) VE>VC>VB
參考答案
無參考答案
內容推薦
- 計程車駕駛人,未向公路主管機關辦理執業登記,領取執業登記證,即行執業者,處新臺幣1,500元以上3,600元以下罰鍰。(A)O(B)X
- 如圖(一)所示,有一物體其重量為 W,由一懸臂梁 AB 及一繩索 BC 所支承,若梁及繩索自重皆忽略不計,則下列梁 AB 之自由體圖何者正確?(A)(B) (C)(D)
- 某公制測微計的精密度標示為 0.01 mm,測量範圍標示為 0 ~ 25 mm,直刻度盤分為50等分,測量某導線線徑時所顯示之測量值如圖( 十四) 所示,則此導線線徑之測量值為何?(A)
- 圖 ( 十八 ) 為一個物聯網的灑水系統流程圖,當系統在早上 10: 15 偵測到土壤濕度數值Hm=45,則灑水馬達何時會停止運轉? (A) 10:40(B) 10:30(C) 10:20(D
- 如圖 ( 十三 ) 所示之稽納 ( Zener ) 二極體電路,其逆向崩潰電壓為 6 V, PZ為稽納二極體消耗功率,PL為負載RL功率,則下列何者錯誤? (A) IL=0.3A (B) IR
- 勞工常處於高溫及低溫間交替暴露的情況、或常在有明顯溫差之場所間出入,對勞工的生(心)理工作負荷之影響一般為何?(A)減少(B)無(C)不一定(D)增加。
- 如圖(十三)所示電路,若Rx可獲得最大功率Pmax,則Rx及Pmax各為何?(A) Rx=1Ω,Pmax=36W(B) Rx=3Ω,Pmax=12W(C) Rx=1Ω,Pmax=6W(D) R
- 已知立體圖如圖(二),何者為其正確的正投影視圖?(A) (B)(C) (D)
- 一物體從高處自由落體落下,如果不考慮空氣阻力等其他因素,並且取地面為零位面,則此物體位能 U 與時間 t 的關係圖為何?(A) (B) (C) (D)
- Emma 在工程圖上撰寫中文字、拉丁字母與阿拉伯數字時,下列寫法何者錯誤?(A) 中文字與拉丁字母分為直式與斜式二種,其中斜式傾斜角度約 75°左右(B) 橫式撰寫時,無論是中文字、拉丁字母或
內容推薦
- 如圖(十四)所示之電晶體直流偏壓電路,下列敘述何者正確? (A) 為共射極固定偏壓電路 (B) 為共集極固定偏壓電路(C) 為共射極分壓偏壓電路 (D) 為共集極分壓偏壓電路
- Every Saturday, the library holds talks on various ________ that include friendship, career,photo
- I don’t feel ________ gossiping about Michael’s life because it is wrong to discuss other people’
- A(n) ________ face is essential to dramatic acting because it is good at showing all kinds of emo
- Henry has been very busy looking for a new job lately, so he hasn’t contacted his family foralmos
- Mozart (莫札特) was a great musician who started to ________ music when he was very young.(A) compos
- A medical report indicates that there is an association between high levels of stress and skin p
- The government declared that the new city hall would be open to the public this summer.(A) annou
- Rose: Hey, let’s go to Mama’s Kitchen for some food.Jane: Sounds great. ________Rose: No, it’s n
- Alan: I’ve been looking for that book! Where did you get it?Betty:________ I just did a search o
- Steve: So, have you made up your mind about a career?Becky: Pretty much. It’s going to be someth
- Ken: Hello. This is Ken Wang. I bought a jacket on your website a month ago. I haven’treceived i
- Mom: I think you have too much junk in your room. Why don’t you clean up right now?Mark: Junk? T
- Jennifer: That was an interesting speech. I learned a lot!Shu-hua: Yes, although the topic was h
- Computer technology ________ people to work at home effectively without having to go tothe office
- The shoes usually cost a lot, but now they are ________ cheap after discount.(A) regionally (B) r
- Interviewer: Have you always worked in the service line?Tim: Yes. Ever since I graduated from co
- Mary broke up with her boyfriend because she felt he had no regard for her feelings.(A) concern (
- Mike: My brother has really gone crazy. He says he wants to take up skydiving. Can youbelieve th
- Bill: Nina, ________Nina: Not really. I’d like to check out this city. But I need to learn how t
- Peter: Did you hear that the band Mayday (五月天) is having two shows here this summer?Leo: Yes. An
- Ⅲ. 綜合測驗: Rainforests are the Earth’s oldest living ecosystems. They 22 only a small part ofth
- In 1275, Marco Polo (馬可波羅) arrived in China. During this journey, he came close tolosing his life a
- 【題組】(A) many (B) much (C) several (D) a few
- 關於在網路上使用TCP/IP的協定傳輸封包時,下列敘述何者正確?(A) 為了提高傳輸效率,使用TCP協定不會檢查封包是否錯誤或遺失,因此不會要求傳送端重傳(B) TCP是屬於ISO組織制定的O