如圖所示的電路,若測知2歐姆電阻兩端的電位差為4伏特,則電池的電壓V為多少伏特?
國中自然9上ch4-5電路元件的串聯與並聯

Quiz
•
Physics
•
9th Grade
•
Medium
翰林出版國中自然 翰林出版國中自然
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
7伏特
6伏特
5伏特
4伏特
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
圖中的甲、乙、丙三個電路,電池、燈泡與電阻的規格均相同,則下列關於三個電路的敘述何者正確?
丙電路電阻與燈泡兩端的電壓相同
乙電路的燈泡兩端電壓最大
甲電路的安培計讀數最大
三個電路的燈泡亮度均相同
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
電路裝置如圖所示,假設電路中的三個鎢絲燈泡完全相同,且遵守歐姆定律。已知通過a處的電流為0.8A,則下列何者最可能是通過b處的電流?
2.4A
1.2A
1.6A
0.8A
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
規格相同的P、Q、R三燈泡,連接如圖,請問流過三燈泡之電流大小關係為何者?
P=Q>R
P=Q<R
P>Q=R
P>Q>R
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
一條延長線上的插座插接了四種家用電器,已知流經四種電器的電流大小分別為4安培、2安培、1安培、5安培,則流過延長線的電流為多少安培?
24
12
5
1
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
無論連接多少家用電器,家用電器的電壓大都不變(110伏特),這是因為家用電器的連接都採用下列何種連接方式?
並聯後再串聯
串聯後再並聯
並聯
串聯
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
若有兩個1.5V的乾電池,和2Ω與3Ω的兩個電燈泡,連接成一電路,如圖所示,則通過2Ω電燈泡的電流為多少?
1.5A
0.5A
1.0A
2.0A
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