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单选题 理想变压器是一种( )
学科：默认课程
时间：2025-11-23 01:09:12
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题目1单选题
理想变压器是一种( )A. 储能元件B. 有源元件C. 有损元件D. 无损元件
题目2单选题
正弦稳态电路如图所示,电源<img src="https://tihai-oss-cloud.itihey.com/img/07539982ab3ec796db801d56cba9f6db.png">的角频率<img src="https://tihai-oss-cloud.itihey.com/img/a367a87ccea68a55fa53b8db1906bdd2.png">, 使正弦电压<img src="https://tihai-oss-cloud.itihey.com/img/5ec85cad2eacf807a16808e1c525a916.png">的有效值为最大,则电容C应为( )F. <img src="https://tihai-oss-cloud.itihey.com/img/b83884b8ca7b3bf625213cee949db7f3.png">A. 0.005B. 0.01C. 0.05D. 2
题目3单选题
电路如图所示.已知M = 0.05 H,则电路的谐振频率f0 =( )<img src="https://tihai-oss-cloud.itihey.com/img/391723b03f8437d669065d4929af0d4c.png">. <img src="https://tihai-oss-cloud.itihey.com/img/40e859258d3faa4dc18566b0c4fbfba8.png">A. 6.5B. 7.5C. 4.5D. 5.5
题目4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5单选题
图示电路中,电压<img src="https://tihai-oss-cloud.itihey.com/img/5ec85cad2eacf807a16808e1c525a916.png">的表达式是( ). <img src="https://tihai-oss-cloud.itihey.com/img/e0fd57161bc96ffc18fe1a9d34d9cddc.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/4674bd9b6b1e38cd7bbad996ccb62f27.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/f2fa99fce5067140514ff5fa84cec9ad.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/d53c0b68d8e257cf4e12f15682ac3e40.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/ce288248a7fe4590f35d188a1f888d3f.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. 50mHB. 100mHC. 75mHD. 125mH
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