本课配套习题挑战模式1/5
单选题
难度系数:
1.关于串、并联电路,下列说法正确的是( )
A: 串联电路电流处处相等 |
B: 串联电路总电阻的倒数等于各电阻倒数之和 |
C: 并联电路各支路电流总相等 |
D: 并联电路的总电阻等于各支路电阻之和 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Liy5bm26IGU55S16Lev55S15rWB5ZKM55S16Zi755qE54m554K5
- 答案:QQ==
QeOAgeWcqOS4suiBlOeUtei3r+S4re+8jOeUtea1geWkhOWkhOebuOetie+8jOato+ehru+8m0LjgIHkuLLogZTnlLXot6/mgLvnlLXpmLvnrYnkuo7lkITkuLLogZTnlLXpmLvkuYvlkozvvIzmlYVC6ZSZ77ybQ+OAgeWcqOW5tuiBlOeUtei3r+S4re+8jOW5sui3r+S4reeahOeUtea1geetieS6juWQhOaUr+i3r+eUtea1geS5i+WSjO+8jOaVhUPplJnvvJtE44CB5bm26IGU55S16Lev5oC755S16Zi755qE5YCS5pWw562J5LqO5ZCE55S16Zi75YCS5pWw5LmL5ZKM77yM5pWFROmUme+8m+aVhemAiUHvvI4=
本课配套习题挑战模式3/5
单选题
难度系数:
3.3个阻值相同的电阻串联,总电阻为R1,若将这3个电阻并联,总电阻为R2,则R1和R2之比为( )
A: 1:1 |
B: 3:1 |
C: 9:1 |
D: 1:9 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Liy6IGU55S16Lev5oC755S16Zi7562J5LqO5ZCE55So55S15Zmo55S16Zi75LmL5ZKM
- 答案:Qw==
M+S4qumYu+WAvOebuOWQjOeahOeUtemYu+S4suiBlO+8jOaAu+eUtemYu1I8c3ViPjE8L3N1Yj7kuLozUu+8mzPkuKrpmLvlgLznm7jlkIznmoTnlLXpmLvlubbogZTvvIzmgLvnlLXpmLtSPHN1Yj4yPC9zdWI+5Li6Ui8z77yb5omA5LulUjxzdWI+MTwvc3ViPuWSjFI8c3ViPjI8L3N1Yj7kuYvmr5TkuLo577yaMe+8jOaVhUHvvIxC77yMROmUmeivr++8jEPmraPnoa7vvI7mlYXpgIlD77yO
本课配套习题挑战模式4/5
单选题
难度系数:
4.两个电阻值完全相等的电阻,若并联后的总电阻是10Ω,则将它们串联后的总电阻是( )
A: 5Ω |
B: 10Ω |
C: 20Ω |
D: 40Ω |
一次做对,真牛!
+5奖励规则>
- 提示1:5bm26IGU55S16Lev5oC755S16Zi755qE5YCS5pWw562J5LqO5ZCE55S16Zi75YCS5pWw5LmL5ZKM
- 提示2:5Liy6IGU55S16Lev5oC755S16Zi7562J5LqO5ZCE5Liy6IGU55S16Zi75LmL5ZKM
- 答案:RA==
5qC55o2uPGltZyB3aWR0aD02NSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC83My83NS9yQkFDRTFUSm1NalNOYmsyQUFBQng1ZGROOXcyMTYucG5nIj7lj6/lvpfvvJrmr4/kuIDkuKrnlLXpmLvnmoTpmLvlgLzkuLpSPTJSPHN1Yj7lubY8L3N1Yj49MsOXMTDOqT0yMM6p77yM5Liy6IGU5ZCO55qE5oC755S16Zi7PGJyPlI8c3ViPuS4sjwvc3ViPj0yUj0yw5cyMM6pPTQwzqnvvI7mlYXpgIlE77yO
本课配套习题挑战模式5/5
单选题
难度系数:
5.
两只电阻组成串联电路,R1与R2两端电压之比是4:1,若将这两只电阻并联,通过R1与R2的电流之比( )
A: 4:1 |
B: 3:1 |
C: 1:3 |
D: 1:4 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5Liy6IGU55S16Lev5Lit55S15Y6L5LiO55S16Zi75oiQ5q2j5q+UPC9wPg==
- 提示2:PHA+5bm26IGU55S16Lev5Lit55S15rWB5LiO55S16Zi75oiQ5Y+N5q+UPC9wPg==
- 答案:RA==
PHA+5Zug5Li65Lik5Liq55S16Zi75Liy6IGU77yM5omA5LulUjxzdWI+MTwvc3ViPu+8mlI8c3ViPjI8L3N1Yj49VTxzdWI+MTwvc3ViPu+8mlU8c3ViPjI8L3N1Yj49NO+8mjHvvJvlm6DkuLrkuKTkuKrnlLXpmLvlubbogZTvvIzmiYDku6VJPHN1Yj4xPC9zdWI+77yaSTxzdWI+Mjwvc3ViPj1SPHN1Yj4yPC9zdWI+77yaUjxzdWI+MTwvc3ViPj0x77yaNO+8m+aVhemAiUQuPC9wPg==