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電阻與歐姆定律

Authored by CHEN HSI CHUAN

Physics

9th Grade

Used 20+ times

電阻與歐姆定律
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28 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如圖所示電路圖,下列敘述何者錯誤

兩電阻線為並聯連接
通過3Ω電阻線的電壓為3伏特
通過2Ω電阻線的電流為1安培
電池提供的總電流為2.5安培

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

甲、乙兩電阻器串聯如附圖,若A1讀數為1A,一個電池提供1.5V的電位差,則A2讀數為何?

3A
1.5A
1A
0.5A

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

甲、乙兩電阻器串聯如附圖,若A1讀數為1A,一個電池提供1.5V的電位差,則甲、乙電阻器串聯後,總電阻為何?

3Ω
1.5Ω

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

甲、乙兩電阻器串聯如附圖,若A1讀數為1A,一個電池提供1.5V的電位差,則甲電阻器的電阻大小可能是多少?

3Ω
4.5Ω

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

電路上有一條鎳鉻絲,當兩端電位差為6伏特時,通過的電流是3安培,若將電位差調整為8伏特時,通過的電流為多少安培?

2
3
4
6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

小小進行歐姆定律的實驗,測得某金屬的電阻大小為10歐姆,則下列哪項改變,不會影響電阻大小的測量結果?

將使用的電池數增為2倍
將金屬長度增為2倍
將金屬直徑增為2倍
更換成另一條不同材質的金屬線

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

關於附圖的電路裝置,下列敘述何者錯誤

兩電阻器為並聯連接
通過3Ω電阻器的電壓為3伏特
通過2Ω電阻器的電流為1安培
流經電池的總電流為2.5安培

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