本课配套习题挑战模式1/5
单选题
难度系数:
1.下列四位物理学家中,以其名字命名电功单位的是()
A: 安培 |
B: 欧姆 |
C: 伏特 |
D: 焦耳 |
一次做对,真牛!
+5奖励规则>
- 提示1:55S15Yqf55qE5Y2V5L2N5ZKM5Yqf55qE5Y2V5L2N5piv55u45ZCM55qE
- 答案:RA==
5a6J5Z+55piv55S15rWB55qE5Y2V5L2N77yM5qyn5aeG5piv55S16Zi755qE5Y2V5L2N77yM5LyP54m55piv55S15Y6L55qE5Y2V5L2N77yM54Sm6ICz5piv6IO96YeP55qE5Y2V5L2N44CC54mp55CG5a2m5Lit55qE5LiA5Lqb5aSN5ZCI5Y2V5L2N77yM5b6A5b6A5Lul54mp55CG5a2m5a6255qE5ZCN5a2X5ZG95ZCN77yM5Lul57qq5b+15LuW5Lus5a+554mp55CG5a2m55qE6LSh54yuLuaVhemAiUQu
本课配套习题挑战模式2/5
单选题
难度系数:
2.电能表接在家庭电路中,是为了测量()
A: 电功率 |
B: 电功 |
C: 电流 |
D: 电压 |
一次做对,真牛!
+5奖励规则>
- 提示1:55S16IO96KGo5piv5rWL6YeP5p+Q5LiA5q615pe26Ze05YaF5raI6ICX55qE55S16IO955qE5Luq6KGo
- 答案:Qg==
55S15rWB55So55S15rWB6KGo5rWL6YeP77yM55S15Y6L55So55S15Y6L6KGo5rWL6YeP77yM5rWL5Ye655S15rWB5LiO55S15Y6L5ZCO77yM55Sx5YWs5byPUD1VSeWPr+S7peaxguWHuueUteWKn+eOh++8m+WutuW6reeUtei3r+S4re+8jOS4suiBlOWcqOeUtei3r+S4reeahOeUteiDveihqOaYr+eUqOadpea1i+mHj+eUteWKn+eahO+8jOaVhemAiUIu
本课配套习题挑战模式3/5
单选题
难度系数:
3.三峡工程举世瞩目,其水电站的年设计发电量在8亿千瓦时以上,“千瓦时”是下列哪一个物理量的单位()
A: 时间 |
B: 电流 |
C: 电功 |
D: 电功率 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Y2D55Om5piv5Yqf546H55qE5Y2V5L2N77yM5bCP5pe25piv5pe26Ze055qE5Y2V5L2N77yM6YKj5Y2D55Om5pe25L6/5piv5Yqf546H5ZKM5pe26Ze055qE5LmY56ev5omA5b6X54mp55CG6YeP55qE5Y2V5L2N
- 答案:Qw==
5pe26Ze055qE5Y2V5L2N5pyJ77ya5bCP5pe244CB5YiG44CB56eS77yb55S15Yqf546H55qE5Y2V5L2N5pyJ77ya55Om54m544CB5Y2D55Om77yb55S15Yqf55qE5Y2V5L2N5pyJ77ya54Sm6ICz44CB5Y2D55Om5pe277yO5pWF6YCJQ++8jg==
本课配套习题挑战模式4/5
单选题
难度系数:
4.下面是摘自报纸上的几则报道,这几则报道的说法正确的是()
A: 老建筑中导线的绝缘皮老化,容易造成短路,引起火灾,应及时更换 |
B: 石龙坝水电站全年发电量是4×107kW/h |
C: 由于汽车超速行驶,惯性变得很大,容易造成刹车失灵 |
D: 一台家用电冰箱一年至少用电5000 kW·h |
一次做对,真牛!
+5奖励规则>
- 提示1:5Y+R55S16YeP5oyH55qE5piv5p+Q5LiA5q615pe26Ze05YaF5Lqn55Sf55qE55S16IO9
- 提示2:5Yaw566x5p+Q5LiA5q615pe26Ze05YaF5raI6ICX55qE5piv55S16IO9
- 答案:QQ==
6ICB5bu6562R5Lit5a+857q/55qE57ud57yY55qu6ICB5YyW77yM5a655piT6YCg5oiQ55+t6Lev77yM5byV6LW354Gr54G+77yM5bqU5Y+K5pe25pu05o2i77yMQeWvue+8m+efs+m+meWdneawtOeUteermeWFqOW5tOWPkeeUtemHj+aYrzTDlzEwPHN1cD43PC9zdXA+a1cvaO+8jELljZXkvY3plJnor6/jgILnlLHkuo7msb3ovabotoXpgJ/ooYzpqbbvvIzpgJ/luqblvojlpKfliLnovabot53nprvlj5jlpKfvvIzlrrnmmJPpgKDmiJDliLnovablpLHngbXvvIjmg6/mgKflj6rot5/otKjph4/mnInlhbPns7vvvInvvIxD6ZSZ44CC5LiA5Y+w5a6255So55S15Yaw566x5aSn57qmM+WkqeS4gOW6pueUte+8jOS4gOW5tOWkp+e6pueUqOeUtTEyMOW6puWNszEyMGtXwrdo77yMROmUmeOAguaVhemAiUEu
本课配套习题挑战模式5/5
单选题
难度系数:
5.下列说法错误的是()
A: 我们常说消耗了多少电能,其意思就是说电流做了多少功 |
B: 电能通过灯泡后发光,这个过程中电流做了功 |
C: 电能表上的读数显示了这个月用户的用电量 |
D: 电能和电功的单位相同,都是J |
一次做对,真牛!
+5奖励规则>
- 提示1:55S15rWB5YGa5Yqf55qE6L+H56iL5bCx5piv55S16IO96L2s5YyW5Li65YW25a6D5b2i5byP6IO96YeP55qE6L+H56iL77yM5raI6ICX5LqG5aSa5bCR55S16IO977yM5YW25oSP5oCd5bCx5piv6K+055S15rWB5YGa5LqG5aSa5bCR5Yqf
- 提示2:5raI6ICX5LqG5aSa5bCR55S16IO977yM55S15rWB5bCx5YGa5LqG5aSa5bCR5Yqf77yM5Zug5q2k55S16IO95ZKM55S15Yqf55qE5Y2V5L2N5piv5LiA5qC355qE
- 答案:Qw==
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