本课配套习题挑战模式1/5
如图所示电路. 电源电压为10V,电压表示数为3V,则L1两端电压为( )V,L2两端电压为( )
A: 7V、3V |
B: 10V、7V |
C: 3V、10V |
D: 3V、7V |
- 提示1:PHA+55S15Y6L6KGo5rWL6YeP55qE5pivTDxzdWI+Mjwvc3ViPuS4pOerr+eahOeUteWOi++8jEw8c3ViPjI8L3N1Yj7kuKTnq6/nlLXljovkuLozVu+8jEw8c3ViPjE8L3N1Yj7kuKTnq6/nlLXljovkuLrnlLXmupDnlLXljovlh49MPHN1Yj4yPC9zdWI+5Lik56uv55S15Y6LPGJyPjwvcD4=
- 答案:QQ==
PGRpdj7nlLXljovooajmtYvph4/nmoTmmK9MPHN1Yj4yPC9zdWI+5Lik56uv55qE55S15Y6L77yMTDxzdWI+Mjwvc3ViPuS4pOerr+eUteWOi+S4ujNW77yMTDxzdWI+MTwvc3ViPuS4pOerr+eUteWOi+S4uueUtea6kOeUteWOi+WHj0w8c3ViPjI8L3N1Yj7kuKTnq6/nlLXljovvvIzliJlB5q2j56GuPGJyPjwvZGl2Pg==
本课配套习题挑战模式2/5
如图所示,AB和BC是由同种材料制成的长度相同、横截面积不同的两段导体,将它们串联后连入电路中. 比较这两段导体两端的电压及通过它们的电流的大小,有( )
A: IAB<IBC UAB>UBC |
B: IAB<IBC UAB>UBC |
C: IAB<IBC UAB<UBC |
D: IAB=IBC UAB>UBC |
- 提示1:PHA+5Liy6IGU55S16Lev55S15rWB5aSE5aSE55u4562JPC9wPg==
- 提示2:PHA+5Liy6IGU55S16Lev77yM55S16Zi75aSn55qE5a+85L2T5Lik56uv55S15Y6L5aSnPC9wPg==
- 答案:RA==
PGRpdj7kuLLogZTnlLXot6/nlLXmtYHlpITlpITnm7jnrYnvvIzkuLLogZTnlLXot6/vvIznlLXpmLvlpKfnmoTlr7zkvZPkuKTnq6/nlLXljovlpKfvvIzliJnpgInpoblC5q2j56GuPC9kaXY+
本课配套习题挑战模式3/5
如图所示,R1=5Ω,R2=10Ω,则电压表V1,V2示数之比是( )
A: 1:2 |
B: 2:1 |
C: 1:3 |
D: 3:1 |
- 提示1:PHA+VjxzdWI+MTwvc3ViPua1i1Ix5Lik56uv55S15Y6L77yMVjxzdWI+Mjwvc3ViPua1i1I8c3ViPjE8L3N1Yj7lkoxSPHN1Yj4yPC9zdWI+5Lik56uv55S15Y6L77yM5Liy6IGU55S15Y6L77yM55S15Y6L5q+U562J5LqO55S16Zi75q+UPGJyPjwvcD4=
- 答案:Qw==
PGRpdj5WPHN1Yj4xPC9zdWI+5rWLUjxzdWI+MTwvc3ViPuS4pOerr+eUteWOi++8jFY8c3ViPjI8L3N1Yj7mtYtSPHN1Yj4xPC9zdWI+5ZKMUjxzdWI+Mjwvc3ViPuS4pOerr+eUteWOi++8jOS4suiBlOeUteWOi++8jOeUteWOi+avlOetieS6jueUtemYu+avlO+8jOWImemAiemhuUPmraPnoa48YnI+PC9kaXY+
本课配套习题挑战模式4/5
在探究“串联电路电压规律”的实验中,小林同学连接完如图所示的电路. 当开关断开时,发现电压表示数为6V;闭合开关后,发现电压表示数变为2V. 则开关闭合后,下列说法正确的是( )
A: R1两端的电压与R2两端的电压之比为3:1 |
B: R1的电阻与R2的电阻之比为1:2 |
C: 通过R1的电流与通过R2的电流之比为2:1 |
D: 通过R1的电流与通过R2的电流之比为1:1 |
- 提示1:PHA+55S15Y6L6KGo5rWLUjxzdWI+MTwvc3ViPuS4pOerr+eUteWOi++8jOWImVI8c3ViPjI8L3N1Yj7kuKTnq6/nlLXljovkuLo0Vu+8jOS4pOWvvOS9k+eUteWOi+avlOS4ujE6Mu+8jOS4suiBlOeUtei3r+eUtemYu+avlOetieS6jueUteWOi+avlDxicj48L3A+
- 提示2:PHA+5Liy6IGU55S16Lev55S15rWB5aSE5aSE55u4562JPC9wPg==
- 答案:QixE
PGRpdj7nlLXljovooajmtYtSPHN1Yj4xPC9zdWI+5Lik56uv55S15Y6L77yM5YiZUjxzdWI+Mjwvc3ViPuS4pOerr+eUteWOi+S4ujRW77yM5Lik5a+85L2T55S15Y6L5q+U5Li6MToy77yM5Liy6IGU55S16Lev55S16Zi75q+U562J5LqO55S15Y6L5q+U77yM5Liy6IGU55S16Lev55S15rWB5aSE5aSE55u4562J77yM5YiZQkTkuKTpgInpobnlnYfmraPnoa48YnI+PC9kaXY+
本课配套习题挑战模式5/5
在探究电路的电压规律的实验时用了下图中的某个电路,已知R1>R2,电压表V1、V2、V3的读数分别是4V,2V,6V,测量时的电路图应是( )
A: |
B: |
C: |
D: |
- 提示1:PHA+5ZCE55S15Y6L5YC85LiN55u4562J77yM5YiZ55S16Lev5bqU5Li65Liy6IGU55S16Lev77yM5ZCE5YWD5Lu255S15Y6L5LmL5ZKM562J5LqO55S15rqQ55S15Y6L77yM6YCa6L+H6aKY5Lit5omA57uZ5bey55+l77yMVjxzdWI+Mzwvc3ViPuaJgOa1i+S4uueUtea6kOeUteWOi++8jOmAiemhuULjgIFE56ym5ZCI6aKY5oSP44CC5pyJ5bey55+lUjxzdWI+MTwvc3ViPu+8nlI8c3ViPjI8L3N1Yj48c3ViPu+8jDwvc3ViPiBWPHN1Yj4xPC9zdWI+Jmd0O1Y8c3ViPjI8L3N1Yj48c3ViPu+8jDwvc3ViPuWImVY8c3ViPjE8L3N1Yj7mtYtSPHN1Yj4xPC9zdWI+55S15Y6L77yMVjxzdWI+Mjwvc3ViPua1i1I8c3ViPjI8L3N1Yj7nlLXljos8L3A+
- 答案:RA==
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