动态电路(20)(19)图5VAR1R2S1A1S2A1A215.在图5所示的电路中电源电压保持不变电键S1闭合当闭合电键S2时电表示数变大的有__________(选填AA1A2V)当变阻器R2的滑片P__________移动时电流表A1示数变化量等于电流表A示数变化量(选填向左向右或向左或向右)图7R1PAA1SR2V15.在图7所示的电路中电源电压保持不变闭合电键S当滑动变阻器的滑片P向右移
压强计算图10A B水酒精酒精21.如图10所示圆柱形容器A和B放在水平地面上底面积分别为2×10-2米2和1×10-2米2容器A中盛有米高的水容器B中盛有质量为千克的酒精(ρ酒精×103千克米3)① 求容器A中水对容器底部的压强p水② 求容器B中酒精的高度h酒精③ 若要是使容器A和B底部受到的液体压强相等则可在容器______倒入金属细颗粒(选填A或B)求倒入金属细颗粒的体
奉贤区I. ListeningprehensionSection A Directions: In Section A you will hear ten short conversations between two speakers. At the end of each conversation a question will be asked about what was
上海市各区2018届初三一模物理试卷按考点分类汇编:电路计算宝山:22.在图10所示的电路中电源电压保持不变电阻R1的阻值为10欧闭合电键S两电流表的示数分别为安和安⑴ 求电源电压U⑵ 求通过电阻R2的电流I2⑶ 现用电阻R0替换电阻R1R2中的一个替换前后一个电流表示数变化了安另一个电流表示数不变求电阻R0的阻值答案:奉贤:22.在如图12所示的电路中电源电压为6伏且不变滑动变阻器R2上标
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2011年上海市各区高三英语二模考试翻译部分汇编 §1:静安杨浦青浦宝山区他正忙着准备面试(busy)He is busy (in) preparing for the interview.学生喜欢他是因为他有幽默感(sense)The students like him because he has a good sense of is because he has a good sen
photos名词-名词abilitychoice动词-名词(3)singerThe accident took place on the ________ day of their journey. (five) (普陀)There are seven days in a week and the ________ day is Thursday. (five) (青浦)My uncle liv
2011年上海市各区高三英语二模考试翻译部分汇编1.他正忙着准备面试(busy) 2.学生喜欢他是因为他有幽默感(sense)
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