世界怎麼迎來電力時代?

Quiz
•
Science
•
6th - 8th Grade
•
Hard
Jian-Wen Huang
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問,在1879年,愛迪生商品化白熾燈燈泡後,成立了愛迪生公司,但當時沒穩定電力來源,要設法讓電燈亮,於是愛迪生致力推廣哪種電力系統,並以110V為標準呢?
直流電系統
交流電系統
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問,愛迪生當時選用110V的電壓,是因為要扣除多少電壓的耗損,才能讓一般民眾使用100V白熾燈呢?
10V
20V
30V
40V
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
請問,關於直流電的缺點,下列哪些為是?
耗損過大能量
不需架設很多發電站
點對點傳輸無法傳太遠
成本太高
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
請問,下列哪些為交流電的優勢?
可以傳輸更遠距離使用
可使用同一電力來源
不用變壓器
電壓可降至自己需要的範圍
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問,關於直流電的敘述,下列何者為錯?
電流不會隨著時間變化產生改變
英文為
(Direct Current,DC)
圖形為上下波動
電流為固定方向
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問,關於交流電的敘述,何者有誤?
英文為
(Alternating Current,AC)
電流方向會產生週期性變化
圖形為反覆曲線
家用電每秒以50次的頻率變動一次
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