分压器线路 (1)按图3-3接线,稳压电源电压US取12V,可变电阻器RP接成分压器线路,负载电阻RL由电阻箱获得,取值为500Ω。 (2)闭合开关S1和S2,移动可变电阻器RP滑动触头C,使Rx分别为0、Rp、Rp,Rp=1k,测量各对应的电压U1、U2和电流I1、I2、I3,记入表2中。 表2 数据 Rx R L U 1 U 2 I 1 I 2 I 3 0 500 1/2 Rp 500 Rp 500
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】根据首字母写出单词 1. I'd like to trek through the jungle because I like t________ vacations. 2. New York is a f________ city with wonderful gall. 3. I hope you can p________ us with some information about the...
【简答题】听录音,判断下列句子与所听内容是(T)否(F)一致。 ( ) 1. A. I have five finger friends. ( ) 2. A. Do you like him? ( ) 3. A. I hope you'll likeit. ( ) 4. A. I like it very much.