(會考110)表(六)為甲、乙兩款市售省電燈泡所使用的電壓與電功率。若兩燈泡正常使用 100 小時,甲、 乙燈泡所消耗的電能為 X 甲度、X 乙度,則下列關係式何者正確?

電/電流/電阻/電功率會考

Quiz
•
Science
•
6th - 8th Grade
•
Hard
JianAn Chen
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(A) X 甲=X 乙
(B) X 甲=2X 乙
(C) X 甲=4X 乙
(D) 2X 甲=X 乙
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(會考109)有甲、乙、丙、丁四組電路裝置,其電池的電壓值及電阻器的電阻值如圖(二十五)所示。若不計導線電阻及電池內電阻,則哪一組電路裝置中電阻器的耗電功率最高?
(A)甲
(B)乙
(C)丙
(D)丁
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(會考109)有一電路裝置如圖(二十九)所示,其中燈泡甲、乙的規格相同且可正常發亮,若忽略導線電阻及電池內電阻,下列敘述何者正確?
(A)接通開關 S1、S2 及 S3 後,兩燈泡均發亮
(B)接通開關 S2、S3 及 S4 後,兩燈泡均不亮
(C)接通開關S1、S3及S4後,燈泡甲發亮,燈泡乙不亮
(D)接通開關S1、S2及S4後,燈泡甲不亮,燈泡乙發亮
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(會考108)將一根帶正電的玻璃棒靠近一顆以絕緣細線懸掛的不帶電金屬球,但玻璃棒與金屬球不互相接觸。關於金屬球兩側所帶電性與受力達帄衡狀態的示意圖,下列何者最合理?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(會考108)導體甲、乙、丙分別連接成三個電路裝置,如圖(十四) 所示。三個導體均由相同的材質組成,導體甲的長度為 L cm,截面積為 A cm2;導體乙的長度為 2L cm,截面積為 A cm2;導體丙的長度為 L cm,截面積為 2A cm2。 若電路中導線及安培計的電阻、電池內電阻忽略不計, 導體甲、乙、丙所連接的電路裝置中,流經三導體的電流值分別為 I 甲、I 乙、I 丙,其大小關係為下列何者?
(A)I 甲>I 乙>I 丙
(B)I 乙>I 甲>I 丙
(C)I 丙>I 甲>I 乙
(D)I 丙>I 乙>I 甲
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(會考107)一電路裝置如圖(二十三)所示,圖中導線電阻 與電池內電阻忽略不計,甲、乙兩個燈泡皆正常發亮。若因燈泡甲燒毀而使電流無法通過燈泡甲,則有關燈泡乙在燈泡甲燒毀後的敘述, 下列何者最合理?
(A)因電路發生斷路而使燈泡乙在未燒毀的情況下熄滅
(B)因電路發生短路而使燈泡乙在未燒毀的情況下熄滅
(C)流經燈泡乙的電流變為原本的 2 倍而使其亮度增加
(D)燈泡乙仍正常發亮且流經燈泡乙的電流大小仍不變
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(會考107)欣如進行電解水的實驗,其裝置及收集到 X、 Y 二種氣體的體積,如圖 (二十五)所示。若將此直流電源改接到圖(二十六) 的電鍍裝置進行銅片鍍鎳,應如何正確連接和選用電鍍液?
(A)甲極接銅片,乙極接鎳片,電鍍液選用硫酸鎳溶液
(B)甲極接銅片,乙極接鎳片,電鍍液選用硫酸銅溶液
(C)甲極接鎳片,乙極接銅片,電鍍液選用硫酸鎳溶液
(D)甲極接鎳片,乙極接銅片,電鍍液選用硫酸銅溶液
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