問題詳情
25. 如右圖所示，無限長的載流直導線 LL2 平行放置，電流 I1＝I2，直線 aa’與 LL2 垂直相交於 O、O’。已知 aO＝Ob＝bc＝cb’＝b’O’＝O’a’，對這兩條導線的電流所產生的磁場，下列何者正確？
(A)通過 c 點且平行於 LL2 的直線上，磁場強度均為零
(B)b、b’兩點的磁場強度相同，方向相同
(C)a、a’兩點的磁場強度相同，方向相反
(D)a、b、c 三點的磁場大小關係為 Ba＞Bb＞Bc
(E)b、b’兩點的磁場大小關係為 Bb＝Bb’。
(A)通過 c 點且平行於 LL2 的直線上，磁場強度均為零
(B)b、b’兩點的磁場強度相同，方向相同
(C)a、a’兩點的磁場強度相同，方向相反
(D)a、b、c 三點的磁場大小關係為 Ba＞Bb＞Bc
(E)b、b’兩點的磁場大小關係為 Bb＝Bb’。
參考答案
答案：A,C,D,E
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
內容推薦
- 【題組】(A) X (B) in(C) for (D) on
- Mom wanted Dad to come home ________ soon________ possible.(A) so; as (B) as; so (C) so; so
- 奇怪的_____________
- 五、 單字測驗 紙_________________
- 【題組】(A) trick-or-treat (B) trick-or-treated(C) trick-or-treating(D) tricking-or-treat
- The actress was thin before, __________ she?(A) wasn’t (B) was (C) didn’t (D) doesn’t
- 【題組】Which is NOT true about Uncle Tom’s paintings?(A) They have sold well since he began painting
- 【題組】(A) on (B) in (C) of (D) away
- They were excited _______ the trip to Kaohsiung.(A) to (B) with (C) about (D) in
- 【題組】(A) meet (B) were meeting(C) have met (D) met
內容推薦
- We’ll have a whale of ________ at the party, won’t we?(A) the time (B) a time (C) time (D) tim
- 【題組】(A) does (B) doesn’t (C) is (D) isn’t
- 完美的________________
- I have been a fisherman since last summer. (依畫線部分造原問句)___________________________________________
- hope→________________
- The Ghost Festival is around the ________. Let’s gobuy some food and drinks.(A) corner (B) bloc
- 【題組】What do we know from the note?(A) Jack’s wife is going to see a doctor.(B) Jack and his wife
- 腦_________________
- The party will be great. / We hope so. (用that合併兩句)_______________________________________________
- sell→________________
- 以下是某學者的研究報告──根據內容判斷，該學者所說的制度是指下列何者？ (A)不信任案 (B)覆議 (C)彈劾(D)罷免。
- 四、 閱讀測驗 每題2分 共10分 (一) Hello, everyone. My name’s Coco. I’m 38 now, and I’ve lived in Taipei since I
- 報告_________________
- His future is in his own hands. / Joe believes so. (用that合併兩句)___________________________________
- let→________________
- 三、 克漏字選擇 每題1分 共7分 Dear Amy, How ___(1)___ you been? It’s been two years __(2)___ we__(3)___ in Eng
- 【題組】What can’t Coco’s guests do at her bed-and-breakfast?(A) Pick fruit.(B) Grow vegetables.(C) M
- 圓形________________
- 0臺灣大約在四百多年前從史前時代進入了歷史時代，是因為發明下列哪一項文明？(A)陶器 (B)文字 (C)鐵器 (D)農耕。
- go→________________
- 【題組】(A) to (B) for (C) since (D) in
- 【題組】Which is NOT true about Coco?(A)She hopes her guests can experience Hakka cultureat her bed-a
- 遊行________________
- 在生產活動中，生產者向銀行借貸資金已購買生產設備，其必須支付的代價稱為什麼？(A)利潤(B)利息(C)薪資(D)收入。
- 七、請寫出附加問句 Going to bed early is important, ____________ ___________?