初三物理 (北师版)
欧姆定律的应用
本课配套习题挑战模式1/5
多选题
难度系数:
1.如图所示,由于电路中有一处发生故障,导致电压表的示数为零,下列关于电路故障的说法正确的是( )
A: 一定是灯L1短路 |
B: 可能是灯L1断路 |
C: 可能是灯L2短路 |
D: 可能是灯L2断路 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWmguaenEw8c3ViPjE8L3N1Yj7mlq3ot6/vvIznlLXljovooajml6DnpLrmlbDvvIw=
- 提示2:IOWmguaenEw8c3ViPjI8L3N1Yj7nn63ot6/vvIznlLXljovooajml6DnpLrmlbA=
- 提示3:IOS4pOenjemDveacieWPr+iDvQ==
- 答案:QixD
PGRpdj7lpoLmnpxMPHN1Yj4xPC9zdWI+5pat6Lev77yM55S15Y6L6KGo5peg56S65pWw77yM5aaC5p6cTDxzdWI+Mjwvc3ViPuefrei3r++8jOeUteWOi+ihqOaXoOekuuaVsO+8jCDkuKTnp43pg73mnInlj6/og708L2Rpdj4=
本课配套习题挑战模式2/5
单选题
难度系数:
2.在如图所示电路中,开关闭合时电路中的电流表没有示数,但电压表有示数,那么电路发生故障的原因可能是( )
A: 灯泡L1灯丝断了 |
B: 灯泡L2灯丝断了 |
C: 灯泡L1短路 |
D: 灯泡L2短路 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOS4pOWPqueBr+azoeS4suiBlO+8jOeUtea1geihqOa1i+mHj+eUtei3r+eUtea1ge+8jOeUteWOi+ihqOa1i+mHj+eBr+azoUw8c3ViPjI8L3N1Yj7kuKTnq6/nlLXljos=
- 提示2:IOmXreWQiOW8gOWFs+eUtea1geihqOayoeacieekuuaVsO+8jOivtOaYjueUtei3r+aYr+aWrei3r++8jOeUteWOi+ihqOacieekuuaVsO+8jOivtOaYjuS4jueUteWOi+ihqOS4suiBlOeahOeUtei3r+aYr+mAmui3rw==
- 提示3:IOeBr+azoUw8c3ViPjI8L3N1Yj7nga/kuJ3mlq3kuoY=
- 答案:Qg==
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
本课配套习题挑战模式3/5
单选题
难度系数:
3.如图所示,当开关闭合后两灯均不亮,电流表无示数,电压表示数等于电源电压,则电路发生的故障是( )
A: 电源接线接触不良 |
B: 电流表损坏,断路,其他元件完好 |
C: 灯L1发生灯丝烧断 |
D: 灯L2发生短路,其他元件完好 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOS4pOWPqueBr+azoeS4suiBlO+8jOeUtea1geihqOa1i+mHj+eUtei3r+eUtea1ge+8jOeUteWOi+ihqOa1i+mHj+eBr+azoUw8c3ViPjE8L3N1Yj7kuKTnq6/nlLXljos=
- 提示2:IOmXreWQiOW8gOWFs+eUtea1geihqOayoeacieekuuaVsO+8jOivtOaYjueUtei3r+aYr+aWrei3r++8jOeUteWOi+ihqOacieekuuaVsO+8jOivtOaYjuS4jueUteWOi+ihqOS4suiBlOeahOeUtei3r+aYr+mAmui3rw==
- 提示3:IOeBr0w8c3ViPjE8L3N1Yj7lj5HnlJ/nga/kuJ3ng6fmlq0=
- 答案:Qw==
PGRpdj7kuKTlj6rnga/ms6HkuLLogZTvvIznlLXmtYHooajmtYvph4/nlLXot6/nlLXmtYHvvIznlLXljovooajmtYvph4/nga/ms6FMPHN1Yj4xPC9zdWI+5Lik56uv55S15Y6LLOmXreWQiOW8gOWFs+eUtea1geihqOayoeacieekuuaVsO+8jOivtOaYjueUtei3r+aYr+aWrei3r++8jOeUteWOi+ihqOacieekuuaVsO+8jOivtOaYjuS4jueUteWOi+ihqOS4suiBlOeahOeUtei3r+aYr+mAmui3ryznga9MPHN1Yj4xPC9zdWI+5Y+R55Sf54Gv5Lid54On5patLjwvZGl2Pg==
本课配套习题挑战模式4/5
单选题
难度系数:
4.如图所示的电路,开关S闭合时,发现L1、L2都不亮,用电压表逐段测量,结果是Uad=6v,Uab=0, Ubc=0, Ucd=6V, 则该电路的故障可能是( )
A: 开关S接触不良 |
B: 灯L1断路 |
C: 灯L2短路 |
D: 灯L2的灯丝断了 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOeUteWOi+ihqOacieekuuaVsO+8jOivtOaYjueUteWOi+ihqOS4jueUtea6kOebuOi/nueahOmDqOWIhuaYr+mAmui3rw==
- 提示2:IOeUteWOi+ihqOaXoOekuuaVsO+8jOivtOaYjueUteWOi+ihqOS4jueUtea6kOebuOi/nueahOmDqOWIhuS4jemAmg==
- 提示3:IGNk6Ze05pat6Lev
- 答案:RA==
PGRpdj7nlLXljovooajmnInnpLrmlbDvvIzor7TmmI7nlLXljovooajkuI7nlLXmupDnm7jov57nmoTpg6jliIbmmK/pgJrot68s55S15Y6L6KGo5peg56S65pWw77yM6K+05piO55S15Y6L6KGo5LiO55S15rqQ55u46L+e55qE6YOo5YiG5LiN6YCaLOaJgOS7peWPquiDveaYryBjZOmXtOaWrei3rzwvZGl2Pg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.如图所示的电路,开关S闭合时,发现L1、L2都不亮,用电压表逐段测量,结果是Uab=0,Ubc=6V, 则该电路的故障可能是( )
A: 开关S接触不良 |
B: 灯L1断路 |
C: 灯L2短路 |
D: 灯L2的灯丝断了 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOeUteWOi+ihqOacieekuuaVsO+8jOivtOaYjueUteWOi+ihqOS4jueUtea6kOebuOi/nueahOmDqOWIhuaYr+mAmui3rw==
- 提示2:IOeUteWOi+ihqOaXoOekuuaVsO+8jOivtOaYjueUteWOi+ihqOS4jueUtea6kOebuOi/nueahOmDqOWIhuS4jemAmg==
- 提示3:IOeBr0w8c3ViPjI8L3N1Yj7nmoTnga/kuJ3mlq3kuoY=
- 答案:RA==
PGRpdj7nlLXljovooajmnInnpLrmlbDvvIzor7TmmI7nlLXljovooajkuI7nlLXmupDnm7jov57nmoTpg6jliIbmmK/pgJrot68s55S15Y6L6KGo5peg56S65pWw77yM6K+05piO55S15Y6L6KGo5LiO55S15rqQ55u46L+e55qE6YOo5YiG5LiN6YCaLOaJgOS7peWPquiDveaYr+eBr0w8c3ViPjI8L3N1Yj7nmoTnga/kuJ3mlq3kuoY8L2Rpdj4=