《2021年2020版物理新增分大一轮江苏专用版讲义:第十章交变电流传感器本章学科素养提升含解析.pdf》由会员分享,可在线阅读,更多相关《2021年2020版物理新增分大一轮江苏专用版讲义:第十章交变电流传感器本章学科素养提升含解析.pdf(4页珍藏版)》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、1.对于原线圈电路接用电器的问题,输入功率等于输出功率,要注意电压与匝数成正比关系成立的条件,此时U1U2n1n2中 U1指的是原线圈两端电压,而不是电源电压.2.常见图例(图 1)图 1 3.处理技巧首先计算出通过副线圈的电流,由电流比关系可知原线圈的电流;其次根据欧姆定律可表示出与原线圈串联的电阻两端的电压;最后结合题意,列出原线圈两端电压的表达式,根据电压比关系求出副线圈两端电压.例 1一理想变压器的原、副线圈的匝数比为31,在原、副线圈的回路中分别接有阻值相同的电阻,原线圈一侧接在电压为220 V 的正弦交流电源上,如图2 所示.设副线圈回路中电阻两端的电压为 U,原、副线圈回路中电阻
2、消耗的功率的比值为k,则()图 2 A.U66 V,k19B.U22 V,k19C.U66 V,k13D.U22 V,k13解析因原、副线圈的匝数比为31,根据变压器的工作原理得I1I2n2n1,即原、副线圈中的电流之比I1I213,因 PI2R,故原、副线圈回路中电阻消耗的功率的比值kI21I2219.设副线圈两端电压为U,由U1Un1n2,则原线圈两端电压为U13U,副线圈中UI2R,与原线圈连接的电阻两端的电压UI1R13I2RU3,因原线圈一侧所加电压为220 V,所以 UU1U33U220 V,解得 U66 V,|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢
3、.|迎.|下.|载.第 1 页,共 4 页综上所述选项A 正确,B、C、D 错误.答案A 含有变压器的动态电路问题的解题思路:例 2(多选)如图 3 所示,理想变压器的原线圈连接一只理想交流电流表,副线圈匝数可以通过滑动触头 Q 来调节,在副线圈两端连接了定值电阻R0和滑动变阻器R,P 为滑动变阻器的滑片.在原线圈上加一电压为U 的正弦式交变电流,则()图 3 A.保持 Q 的位置不动,将P 向上滑动时,电流表读数变大B.保持 Q 的位置不动,将P 向上滑动时,电流表读数变小C.保持 P 的位置不动,将Q 向上滑动时,电流表读数变大D.保持 P 的位置不动,将Q 向上滑动时,电流表读数变小解析
4、保持 Q 的位置不动,副线圈输出电压不变,将P 向上滑动时,电阻R 增大,副线圈总电阻增大,副线圈电流减小,由I1I2n2n1知,原线圈电流也减小,故A 错误,B 正确.保持 P 的位置不动,将 Q 向上滑动时,副线圈匝数增多,由U1U2n1n2知,副线圈输出电压变大,副线圈的电流变大,原线圈电流也相应变大,故C 正确,D 错误.答案BC|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 2 页,共 4 页文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1
5、 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V
6、10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D
7、2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:
8、CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M1
9、0V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ1
10、0K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1
11、W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 3 页,共 4 页文档编码
12、:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M
13、10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ
14、10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I
15、1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6
16、 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3
17、Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6
18、文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9
19、O10M10V6|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 4 页,共 4 页文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P
20、6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL
21、3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V
22、6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K
23、9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1
24、P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU
25、9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6文档编码:CL3Q9T2D2P6 HU9V10I1W1P1 ZZ10K9O10M10V6