小明在電路中測得電流為 2 安培,電壓為 6 伏特,則此電路的電阻為多少歐姆?

電學複習

Quiz
•
Physics
•
8th Grade
•
Hard
佩琪 陳
Used 1+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
0.33 Ω
3 Ω
8 Ω
12 Ω
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一項敘述正確?
安培計需要與電路串聯才能測量電流
伏特計需要與電路串聯才能測量電壓
安培計的內部電阻應該很大
伏特計的內部電阻應該很小
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在並聯電路中,下列哪個敘述正確?
各分支的電流相同
各分支的電壓相同
總電流小於各分支電流
總電壓等於各分支電壓的總和
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
兩個相同的燈泡串聯後,下列敘述何者錯誤?
兩個燈泡的亮度相同
通過兩個燈泡的電流相同
每個燈泡的電壓等於電池電壓
總電阻等於兩個燈泡電阻的和
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
電子在導體中移動時:
速度越快,電阻越小
與其他粒子碰撞越多,電阻越大
方向一定是由負極流向正極
不會受到溫度的影響
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