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第11章 电流、电阻和电压小考

Authored by 1213 (Ind)

Science

1st - 3rd Grade

Used 603+ times

第11章 电流、电阻和电压小考
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14 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

电流强度用_________表示,它的 SI 单位是_________。

A,I

I,A

I,V

A,A

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

电压大小用_________表示,它的 SI 单位是_________。

A,V

V,A

V,V

A,A

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

电阻的符号是_________,SI 单位是__________.

Ω ,R

R,A

R,Ω

V,R

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

如图所示,用安倍计测量通过灯L1的电流,其中接法正确的是( )。

Media Image
Media Image
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5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

关于安培计和伏特计的使用,下列说法中,错误的是( )。

使用前都应检查指针是否指零

若有两个量程,一般先用大量程“试触”

两表都不能将两接线柱直接接到电源的两极上

接入电路时,都应使电流从正接线柱流入,从负接线柱流出

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

如图所示,要使伏特计测量灯L2两端的电压,正确的电路图是( )。

Media Image
Media Image
Media Image
Media Image

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

如图所示的电路中,甲、乙、丙是连接在电路中的三个电学仪表,闭合开关S后,灯均正常发光,则( )。

甲是安培计,乙、丙是伏特计

甲是伏特计,乙、丙是安培计

乙是安培计,甲、丙是伏特计

乙是伏特计,甲、丙是安培计

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