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单选题 电路如图,已知
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=( )V. 
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学科：默认课程
时间：2025-12-04 00:23:51
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题目1单选题
两互感线圈的耦合系数k为( )A. <img src="https://tihai-oss-cloud.itihey.com/img/8f2e0a4425023c85d55ba8c382c77b46.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/91d07a81a11169a19caece89ad213a2f.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/6c271ecf6717405143debe327b3c8374.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/a7d153eb1f9152c4bd9ee5e6e85aa301.png">
题目2单选题
耦合线圈的初级自感和次级自感分别为3H和7H,则线圈的互感至多为( )HA. 4.58B. 3C. 7D. 21
题目3单选题
图示耦合电感并联电路中,若L=M,则电路的等效(复)阻抗Zab为( ). <img src="https://tihai-oss-cloud.itihey.com/img/44060c7e2cf2e7facee45d546264a012.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/a3a26cb83fbd5686b126eade3ea602ea.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/4fa83a5f30f8c5c75541e7c195c40edf.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/fa21327e8f7704207e23441e823b7757.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/fd85463ff3ec511da0eb5791966fdf52.png">
题目4单选题
图示正弦交流电路(a)、(b)中两电路的参数R1,M, R2 ,L1 ,L2及激励源<img src="https://tihai-oss-cloud.itihey.com/img/e6671731752c0c4df293286486e5a1a0.png">完全相同,仅同名端的位置不同,那么对<img src="https://tihai-oss-cloud.itihey.com/img/e6671731752c0c4df293286486e5a1a0.png">来说,<img src="https://tihai-oss-cloud.itihey.com/img/a9d1914db0669ccad7e1a77655385ec7.png">与<img src="https://tihai-oss-cloud.itihey.com/img/93d404fe7642567755a080057756d351.png">的相位关系为(). <img src="https://tihai-oss-cloud.itihey.com/img/adadfd181573f3cbefac354df9e1f8cf.png">A. 相反B. <img src="https://tihai-oss-cloud.itihey.com/img/d1b9de23377f48b3ff7e16e5011acd4e.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/0d703aa5c45d9aae5c16c9feaf89a161.png">D. 相同
题目5单选题
电路如图,已知<img src="https://tihai-oss-cloud.itihey.com/img/34aaf7f06bea249543e1078860350a6d.png">,<img src="https://tihai-oss-cloud.itihey.com/img/70018e2ec0ea61fa6077d4b86595d4b6.png">,<img src="https://tihai-oss-cloud.itihey.com/img/28cbda501ce197efff31f39301121303.png">,<img src="https://tihai-oss-cloud.itihey.com/img/65a0c492c2dffc993707f26f5a140a77.png">,<img src="https://tihai-oss-cloud.itihey.com/img/b5724f390633d1abf3f0c12f6de6a25d.png">,则<img src="https://tihai-oss-cloud.itihey.com/img/5ec85cad2eacf807a16808e1c525a916.png">=( )V. <img src="https://tihai-oss-cloud.itihey.com/img/55cd966850753b2222a66828b9b088ee.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/7bc4932501c711332cc882facf1bda91.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/cf3978e0f9891b91aafbbee3971bca1a.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/1f152c344a5a0035ae288dba36d2ffa4.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/f17b1e6703f8d0d1be3ebc6c9573966b.png">
题目6单选题
图示电路中,已知L1=L2=100mH,M=50mH,ab端的等效电感L=( ). <img src="https://tihai-oss-cloud.itihey.com/img/95e91cad671444232c0b0a979b29a193.png">A. 125mHB. 50mHC. 75mHD. 100mH
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